55717033 has 4 divisors (see below), whose sum is σ = 57638340. Its totient is φ = 53795728.

The previous prime is 55717027. The next prime is 55717061. The reversal of 55717033 is 33071755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36820624 + 18896409 = 6068^2 + 4347^2 .

It is a cyclic number.

It is not a de Polignac number, because 55717033 - 2⁵ = 55717001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55716986 and 55717004.

It is not an unprimeable number, because it can be changed into a prime (55717433) 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, 960610 + ... + 960667.

It is an arithmetic number, because the mean of its divisors is an integer number (14409585).

Almost surely, 2^55717033 is an apocalyptic number.

It is an amenable number.

55717033 is a deficient number, since it is larger than the sum of its proper divisors (1921307).

55717033 is a wasteful number, since it uses less digits than its factorization.

55717033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921306.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 55717033 is about 7464.3843014679. The cubic root of 55717033 is about 381.9407476421.

Adding to 55717033 its reverse (33071755), we get a palindrome (88788788).

The spelling of 55717033 in words is "fifty-five million, seven hundred seventeen thousand, thirty-three".