56431563 has 8 divisors (see below), whose sum is σ = 77669376. Its totient is φ = 36407400.

The previous prime is 56431547. The next prime is 56431567. The reversal of 56431563 is 36513465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56431563 - 2⁴ = 56431547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56431567) 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, 303303 + ... + 303488.

It is an arithmetic number, because the mean of its divisors is an integer number (9708672).

Almost surely, 2^56431563 is an apocalyptic number.

56431563 is a deficient number, since it is larger than the sum of its proper divisors (21237813).

56431563 is a wasteful number, since it uses less digits than its factorization.

56431563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606825.

The product of its digits is 32400, while the sum is 33.

The square root of 56431563 is about 7512.0944482880. The cubic root of 56431563 is about 383.5665206698.

The spelling of 56431563 in words is "fifty-six million, four hundred thirty-one thousand, five hundred sixty-three".