56659129850 has 48 divisors (see below), whose sum is σ = 105984609408. Its totient is φ = 22535293440.

The previous prime is 56659129837. The next prime is 56659129861. The reversal of 56659129850 is 5892195665.

It is a super-2 number, since 2×56659129850² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6473177 + ... + 6481923.

It is an arithmetic number, because the mean of its divisors is an integer number (2208012696).

Almost surely, 2^56659129850 is an apocalyptic number.

56659129850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56659129850 is a deficient number, since it is larger than the sum of its proper divisors (49325479558).

56659129850 is a wasteful number, since it uses less digits than its factorization.

56659129850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9479 (or 9474 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 56.

The spelling of 56659129850 in words is "fifty-six billion, six hundred fifty-nine million, one hundred twenty-nine thousand, eight hundred fifty".