56544330 has 32 divisors (see below), whose sum is σ = 139019328. Its totient is φ = 14710400.

The previous prime is 56544311. The next prime is 56544343. The reversal of 56544330 is 3344565.

It is a super-2 number, since 2×56544330² = 6394522510297800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 21756 + ... + 24215.

It is an arithmetic number, because the mean of its divisors is an integer number (4344354).

Almost surely, 2^56544330 is an apocalyptic number.

56544330 is an abundant number, since it is smaller than the sum of its proper divisors (82474998).

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

56544330 is a wasteful number, since it uses less digits than its factorization.

56544330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46022.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 56544330 is about 7519.5963987438. The cubic root of 56544330 is about 383.8218438984.

Adding to 56544330 its reverse (3344565), we get a palindrome (59888895).

The spelling of 56544330 in words is "fifty-six million, five hundred forty-four thousand, three hundred thirty".