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55251203 = 721113739
BaseRepresentation
bin1101001011000…
…1000100000011
310211222001101212
43102301010003
5103121014303
65252120335
71240425140
oct322610403
9124861355
1055251203
1129208057
12166060ab
13b5a6627
1474a33c7
154cb5ad8
hex34b1103

55251203 has 8 divisors (see below), whose sum is σ = 63191040. Its totient is φ = 47323080.

The previous prime is 55251193. The next prime is 55251227. The reversal of 55251203 is 30215255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55251203 - 24 = 55251187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55251253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12908 + ... + 16646.

It is an arithmetic number, because the mean of its divisors is an integer number (7898880).

Almost surely, 255251203 is an apocalyptic number.

55251203 is a deficient number, since it is larger than the sum of its proper divisors (7939837).

55251203 is a wasteful number, since it uses less digits than its factorization.

55251203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55251203 is about 7433.1152957559. The cubic root of 55251203 is about 380.8733444623.

Adding to 55251203 its reverse (30215255), we get a palindrome (85466458).

The spelling of 55251203 in words is "fifty-five million, two hundred fifty-one thousand, two hundred three".

Divisors: 1 7 2111 3739 14777 26173 7893029 55251203