56625220 has 24 divisors (see below), whose sum is σ = 122750208. Its totient is φ = 21919200.

The previous prime is 56625203. The next prime is 56625221. The reversal of 56625220 is 2252665.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56625221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45046 + ... + 46285.

It is an arithmetic number, because the mean of its divisors is an integer number (5114592).

Almost surely, 2^56625220 is an apocalyptic number.

It is an amenable number.

56625220 is an abundant number, since it is smaller than the sum of its proper divisors (66124988).

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

56625220 is a wasteful number, since it uses less digits than its factorization.

56625220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91371 (or 91369 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 56625220 is about 7524.9730896529. The cubic root of 56625220 is about 384.0047832882.

Adding to 56625220 its reverse (2252665), we get a palindrome (58877885).

The spelling of 56625220 in words is "fifty-six million, six hundred twenty-five thousand, two hundred twenty".