56172635228 has 6 divisors (see below), whose sum is σ = 98302111656. Its totient is φ = 28086317612.

The previous prime is 56172635219. The next prime is 56172635243. The reversal of 56172635228 is 82253627165.

It is a super-2 number, since 2×56172635228² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7021579400 + ... + 7021579407.

It is an arithmetic number, because the mean of its divisors is an integer number (16383685276).

Almost surely, 2^56172635228 is an apocalyptic number.

It is an amenable number.

56172635228 is a deficient number, since it is larger than the sum of its proper divisors (42129476428).

56172635228 is a wasteful number, since it uses less digits than its factorization.

56172635228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14043158811 (or 14043158809 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The spelling of 56172635228 in words is "fifty-six billion, one hundred seventy-two million, six hundred thirty-five thousand, two hundred twenty-eight".