56239812 has 48 divisors (see below), whose sum is σ = 147470400. Its totient is φ = 18532800.

The previous prime is 56239793. The next prime is 56239847. The reversal of 56239812 is 21893265.

56239812 is a `hidden beast` number, since 562 + 3 + 98 + 1 + 2 = 666.

56239812 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6687 + ... + 12537.

It is an arithmetic number, because the mean of its divisors is an integer number (3072300).

Almost surely, 2^56239812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56239812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73735200).

56239812 is an abundant number, since it is smaller than the sum of its proper divisors (91230588).

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

56239812 is a wasteful number, since it uses less digits than its factorization.

56239812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5953 (or 5945 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 56239812 is about 7499.3207692430. The cubic root of 56239812 is about 383.1315824727.

The spelling of 56239812 in words is "fifty-six million, two hundred thirty-nine thousand, eight hundred twelve".