56906651 has 4 divisors (see below), whose sum is σ = 57756072. Its totient is φ = 56057232.

The previous prime is 56906593. The next prime is 56906659. The reversal of 56906651 is 15660965.

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 56906651 - 2¹⁸ = 56644507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56906659) 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, 424610 + ... + 424743.

It is an arithmetic number, because the mean of its divisors is an integer number (14439018).

Almost surely, 2^56906651 is an apocalyptic number.

56906651 is a deficient number, since it is larger than the sum of its proper divisors (849421).

56906651 is an equidigital number, since it uses as much as digits as its factorization.

56906651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849420.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 56906651 is about 7543.6497135008. The cubic root of 56906651 is about 384.6399084332.

The spelling of 56906651 in words is "fifty-six million, nine hundred six thousand, six hundred fifty-one".