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55235701 = 241722853
BaseRepresentation
bin1101001010110…
…1010001110101
310211221021010201
43102231101311
5103120020301
65251520501
71240332013
oct322552165
9124837121
1055235701
11291a7444
12165b9131
13b59c561
14749b8b3
154cb1201
hex34ad475

55235701 has 4 divisors (see below), whose sum is σ = 55260972. Its totient is φ = 55210432.

The previous prime is 55235689. The next prime is 55235711. The reversal of 55235701 is 10753255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10753255 = 52150651.

It can be written as a sum of positive squares in 2 ways, for example, as 34751025 + 20484676 = 5895^2 + 4526^2 .

It is a cyclic number.

It is not a de Polignac number, because 55235701 - 27 = 55235573 is a prime.

It is a super-2 number, since 2×552357012 = 6101965329922802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55235701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55235711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9010 + ... + 13843.

It is an arithmetic number, because the mean of its divisors is an integer number (13815243).

Almost surely, 255235701 is an apocalyptic number.

It is an amenable number.

55235701 is a deficient number, since it is larger than the sum of its proper divisors (25271).

55235701 is a wasteful number, since it uses less digits than its factorization.

55235701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25270.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55235701 is about 7432.0724565897. The cubic root of 55235701 is about 380.8377201950.

Adding to 55235701 its reverse (10753255), we get a palindrome (65988956).

The spelling of 55235701 in words is "fifty-five million, two hundred thirty-five thousand, seven hundred one".

Divisors: 1 2417 22853 55235701