56221310 has 16 divisors (see below), whose sum is σ = 101303136. Its totient is φ = 22465248.

The previous prime is 56221309. The next prime is 56221313. The reversal of 56221310 is 1312265.

It is a super-2 number, since 2×56221310² = 6321671396232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56221313) 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, 9932 + ... + 14528.

It is an arithmetic number, because the mean of its divisors is an integer number (6331446).

Almost surely, 2^56221310 is an apocalyptic number.

56221310 is a deficient number, since it is larger than the sum of its proper divisors (45081826).

56221310 is a wasteful number, since it uses less digits than its factorization.

56221310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 56221310 is about 7498.0870893849. The cubic root of 56221310 is about 383.0895631404.

Adding to 56221310 its reverse (1312265), we get a palindrome (57533575).

The spelling of 56221310 in words is "fifty-six million, two hundred twenty-one thousand, three hundred ten".