56121316 has 12 divisors (see below), whose sum is σ = 98264880. Its totient is φ = 28045640.

The previous prime is 56121287. The next prime is 56121319. The reversal of 56121316 is 61312165.

It is not an unprimeable number, because it can be changed into a prime (56121319) 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, 11955 + ... + 15973.

It is an arithmetic number, because the mean of its divisors is an integer number (8188740).

Almost surely, 2^56121316 is an apocalyptic number.

It is an amenable number.

56121316 is a deficient number, since it is larger than the sum of its proper divisors (42143564).

56121316 is a wasteful number, since it uses less digits than its factorization.

56121316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7514 (or 7512 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 56121316 is about 7491.4161545064. The cubic root of 56121316 is about 382.8623101012.

The spelling of 56121316 in words is "fifty-six million, one hundred twenty-one thousand, three hundred sixteen".