56218232 has 16 divisors (see below), whose sum is σ = 120467760. Its totient is φ = 24093504.

The previous prime is 56218231. The next prime is 56218237. The reversal of 56218232 is 23281265.

It is a junction number, because it is equal to n+sod(n) for n = 56218195 and 56218204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56218231) 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, 501893 + ... + 502004.

It is an arithmetic number, because the mean of its divisors is an integer number (7529235).

Almost surely, 2^56218232 is an apocalyptic number.

It is an amenable number.

56218232 is an abundant number, since it is smaller than the sum of its proper divisors (64249528).

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

56218232 is a wasteful number, since it uses less digits than its factorization.

56218232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003910 (or 1003906 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 56218232 is about 7497.8818342249. The cubic root of 56218232 is about 383.0825718934.

Adding to 56218232 its reverse (23281265), we get a palindrome (79499497).

The spelling of 56218232 in words is "fifty-six million, two hundred eighteen thousand, two hundred thirty-two".