56607309 has 24 divisors (see below), whose sum is σ = 92184960. Its totient is φ = 34305480.

The previous prime is 56607283. The next prime is 56607337. The reversal of 56607309 is 90370665.

It is a happy number.

It is not a de Polignac number, because 56607309 - 2¹² = 56603213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56607349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5397 + ... + 11930.

It is an arithmetic number, because the mean of its divisors is an integer number (3841040).

Almost surely, 2^56607309 is an apocalyptic number.

It is an amenable number.

56607309 is a deficient number, since it is larger than the sum of its proper divisors (35577651).

56607309 is a wasteful number, since it uses less digits than its factorization.

56607309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17358 (or 17341 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 56607309 is about 7523.7828916045. The cubic root of 56607309 is about 383.9642911131.

The spelling of 56607309 in words is "fifty-six million, six hundred seven thousand, three hundred nine".