56551755959 has 8 divisors (see below), whose sum is σ = 57116098560. Its totient is φ = 55989273816.

The previous prime is 56551755937. The next prime is 56551755973. The reversal of 56551755959 is 95955715565.

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

It is a cyclic number.

It is not a de Polignac number, because 56551755959 - 2⁸ = 56551755703 is a prime.

It is a super-2 number, since 2×56551755959² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56551755929) 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, 403979 + ... + 525644.

It is an arithmetic number, because the mean of its divisors is an integer number (7139512320).

Almost surely, 2^56551755959 is an apocalyptic number.

56551755959 is a deficient number, since it is larger than the sum of its proper divisors (564342601).

56551755959 is a wasteful number, since it uses less digits than its factorization.

56551755959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930229.

The product of its digits is 53156250, while the sum is 62.

The spelling of 56551755959 in words is "fifty-six billion, five hundred fifty-one million, seven hundred fifty-five thousand, nine hundred fifty-nine".