56388486 has 32 divisors (see below), whose sum is σ = 140606208. Its totient is φ = 14646240.

The previous prime is 56388467. The next prime is 56388487. The reversal of 56388486 is 68488365.

It is a super-2 number, since 2×56388486² = 6359322706744392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56388487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60565 + ... + 61488.

It is an arithmetic number, because the mean of its divisors is an integer number (4393944).

Almost surely, 2^56388486 is an apocalyptic number.

56388486 is an abundant number, since it is smaller than the sum of its proper divisors (84217722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56388486 is a wasteful number, since it uses less digits than its factorization.

56388486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122076.

The product of its digits is 1105920, while the sum is 48.

The square root of 56388486 is about 7509.2267245037. The cubic root of 56388486 is about 383.4688974004.

The spelling of 56388486 in words is "fifty-six million, three hundred eighty-eight thousand, four hundred eighty-six".