56881632 has 24 divisors (see below), whose sum is σ = 149314536. Its totient is φ = 18960512.

The previous prime is 56881631. The next prime is 56881633. The reversal of 56881632 is 23618865.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56881631) and next prime (56881633).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56881631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296163 + ... + 296354.

It is an arithmetic number, because the mean of its divisors is an integer number (6221439).

Almost surely, 2^56881632 is an apocalyptic number.

It is an amenable number.

56881632 is an abundant number, since it is smaller than the sum of its proper divisors (92432904).

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

56881632 is a wasteful number, since it uses less digits than its factorization.

56881632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592530 (or 592522 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 56881632 is about 7541.9912490005. The cubic root of 56881632 is about 384.5835312123.

The spelling of 56881632 in words is "fifty-six million, eight hundred eighty-one thousand, six hundred thirty-two".