56312558 has 4 divisors (see below), whose sum is σ = 84468840. Its totient is φ = 28156278.

The previous prime is 56312537. The next prime is 56312569. The reversal of 56312558 is 85521365.

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

It is a super-2 number, since 2×56312558² = 6342208377006728, which contains 22 as substring.

It is a nialpdrome in base 13.

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, 14078138 + ... + 14078141.

It is an arithmetic number, because the mean of its divisors is an integer number (21117210).

Almost surely, 2^56312558 is an apocalyptic number.

56312558 is a deficient number, since it is larger than the sum of its proper divisors (28156282).

56312558 is a wasteful number, since it uses less digits than its factorization.

56312558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28156281.

The product of its digits is 36000, while the sum is 35.

The square root of 56312558 is about 7504.1693744211. The cubic root of 56312558 is about 383.2967044186.

The spelling of 56312558 in words is "fifty-six million, three hundred twelve thousand, five hundred fifty-eight".