56556706550 has 24 divisors (see below), whose sum is σ = 105210435000. Its totient is φ = 22619465280.

The previous prime is 56556706529. The next prime is 56556706603. The reversal of 56556706550 is 5560765565.

It is a super-2 number, since 2×56556706550² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291701 + ... + 445199.

It is an arithmetic number, because the mean of its divisors is an integer number (4383768125).

Almost surely, 2^56556706550 is an apocalyptic number.

56556706550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56556706550 is a deficient number, since it is larger than the sum of its proper divisors (48653728450).

56556706550 is a wasteful number, since it uses less digits than its factorization.

56556706550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160880 (or 160875 counting only the distinct ones).

The product of its (nonzero) digits is 4725000, while the sum is 50.

The spelling of 56556706550 in words is "fifty-six billion, five hundred fifty-six million, seven hundred six thousand, five hundred fifty".