56172902 has 4 divisors (see below), whose sum is σ = 84259356. Its totient is φ = 28086450.

The previous prime is 56172889. The next prime is 56172917. The reversal of 56172902 is 20927165.

It is a semiprime because it is the product of two primes.

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, 14043224 + ... + 14043227.

It is an arithmetic number, because the mean of its divisors is an integer number (21064839).

Almost surely, 2^56172902 is an apocalyptic number.

56172902 is a deficient number, since it is larger than the sum of its proper divisors (28086454).

56172902 is a wasteful number, since it uses less digits than its factorization.

56172902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28086453.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 56172902 is about 7494.8583709100. The cubic root of 56172902 is about 382.9795815659.

The spelling of 56172902 in words is "fifty-six million, one hundred seventy-two thousand, nine hundred two".