56218704 has 40 divisors (see below), whose sum is σ = 150243360. Its totient is φ = 18092928.

The previous prime is 56218703. The next prime is 56218727. The reversal of 56218704 is 40781265.

It is a super-3 number, since 3×56218704³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56218703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18802 + ... + 21585.

It is an arithmetic number, because the mean of its divisors is an integer number (3756084).

Almost surely, 2^56218704 is an apocalyptic number.

It is an amenable number.

56218704 is an abundant number, since it is smaller than the sum of its proper divisors (94024656).

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

56218704 is a wasteful number, since it uses less digits than its factorization.

56218704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40427 (or 40421 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 56218704 is about 7497.9133097149. The cubic root of 56218704 is about 383.0836439920.

Adding to 56218704 its reverse (40781265), we get a palindrome (96999969).

The spelling of 56218704 in words is "fifty-six million, two hundred eighteen thousand, seven hundred four".