56707609 has 16 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 45907344.

The previous prime is 56707601. The next prime is 56707619. The reversal of 56707609 is 90670765.

It is not a de Polignac number, because 56707609 - 2³ = 56707601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56707601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85722 + ... + 86380.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2^56707609 is an apocalyptic number.

It is an amenable number.

56707609 is a deficient number, since it is larger than the sum of its proper divisors (11721191).

56707609 is a wasteful number, since it uses less digits than its factorization.

56707609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 56707609 is about 7530.4454715508. The cubic root of 56707609 is about 384.1909337838.

The spelling of 56707609 in words is "fifty-six million, seven hundred seven thousand, six hundred nine".