55501005056 has 72 divisors (see below), whose sum is σ = 129305729280. Its totient is φ = 23280021504.

The previous prime is 55501005037. The next prime is 55501005067. The reversal of 55501005056 is 65050010555.

It is a super-2 number, since 2×55501005056² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245261 + ... + 413708.

Almost surely, 2^55501005056 is an apocalyptic number.

55501005056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55501005056 is an abundant number, since it is smaller than the sum of its proper divisors (73804724224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55501005056 is an equidigital number, since it uses as much as digits as its factorization.

55501005056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659039 (or 659025 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 55501005056 in words is "fifty-five billion, five hundred one million, five thousand, fifty-six".