56130665 has 8 divisors (see below), whose sum is σ = 69177480. Its totient is φ = 43690752.

The previous prime is 56130637. The next prime is 56130673. The reversal of 56130665 is 56603165.

It can be written as a sum of positive squares in 4 ways, for example, as 6948496 + 49182169 = 2636^2 + 7013^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56130665 - 2⁸ = 56130409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151520 + ... + 151889.

It is an arithmetic number, because the mean of its divisors is an integer number (8647185).

Almost surely, 2^56130665 is an apocalyptic number.

It is an amenable number.

56130665 is a deficient number, since it is larger than the sum of its proper divisors (13046815).

56130665 is a wasteful number, since it uses less digits than its factorization.

56130665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303451.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 56130665 is about 7492.0401093427. The cubic root of 56130665 is about 382.8835686962.

The spelling of 56130665 in words is "fifty-six million, one hundred thirty thousand, six hundred sixty-five".