56161307 has 4 divisors (see below), whose sum is σ = 56179296. Its totient is φ = 56143320.

The previous prime is 56161289. The next prime is 56161373. The reversal of 56161307 is 70316165.

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 56161307 - 2¹⁴ = 56144923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56161307.

It is not an unprimeable number, because it can be changed into a prime (56161507) 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, 2963 + ... + 11004.

It is an arithmetic number, because the mean of its divisors is an integer number (14044824).

Almost surely, 2^56161307 is an apocalyptic number.

56161307 is a deficient number, since it is larger than the sum of its proper divisors (17989).

56161307 is a wasteful number, since it uses less digits than its factorization.

56161307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17988.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 56161307 is about 7494.0848006945. The cubic root of 56161307 is about 382.9532286825.

The spelling of 56161307 in words is "fifty-six million, one hundred sixty-one thousand, three hundred seven".