56563331 has 4 divisors (see below), whose sum is σ = 61705464. Its totient is φ = 51421200.

The previous prime is 56563277. The next prime is 56563373. The reversal of 56563331 is 13336565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56563331 - 2¹⁸ = 56301187 is a prime.

It is a super-2 number, since 2×56563331² = 6398820827631122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56560331) 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, 2571050 + ... + 2571071.

It is an arithmetic number, because the mean of its divisors is an integer number (15426366).

Almost surely, 2^56563331 is an apocalyptic number.

56563331 is a deficient number, since it is larger than the sum of its proper divisors (5142133).

56563331 is a wasteful number, since it uses less digits than its factorization.

56563331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142132.

The product of its digits is 24300, while the sum is 32.

The square root of 56563331 is about 7520.8597247921. The cubic root of 56563331 is about 383.8648318932.

Adding to 56563331 its reverse (13336565), we get a palindrome (69899896).

The spelling of 56563331 in words is "fifty-six million, five hundred sixty-three thousand, three hundred thirty-one".