56750561 has 4 divisors (see below), whose sum is σ = 64857792. Its totient is φ = 48643332.

The previous prime is 56750543. The next prime is 56750567. The reversal of 56750561 is 16505765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56750561 - 2¹⁴ = 56734177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56750567) 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, 4053605 + ... + 4053618.

It is an arithmetic number, because the mean of its divisors is an integer number (16214448).

Almost surely, 2^56750561 is an apocalyptic number.

It is an amenable number.

56750561 is a deficient number, since it is larger than the sum of its proper divisors (8107231).

56750561 is an equidigital number, since it uses as much as digits as its factorization.

56750561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107230.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 56750561 is about 7533.2968214454. The cubic root of 56750561 is about 384.2879084504.

The spelling of 56750561 in words is "fifty-six million, seven hundred fifty thousand, five hundred sixty-one".