56890812 has 36 divisors (see below), whose sum is σ = 145913768. Its totient is φ = 17239200.

The previous prime is 56890781. The next prime is 56890817. The reversal of 56890812 is 21809865.

56890812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56890817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18139 + ... + 21042.

Almost surely, 2^56890812 is an apocalyptic number.

It is an amenable number.

56890812 is an abundant number, since it is smaller than the sum of its proper divisors (89022956).

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

56890812 is a wasteful number, since it uses less digits than its factorization.

56890812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39210 (or 39197 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 56890812 is about 7542.5998170392. The cubic root of 56890812 is about 384.6042191261.

The spelling of 56890812 in words is "fifty-six million, eight hundred ninety thousand, eight hundred twelve".