56309416 has 16 divisors (see below), whose sum is σ = 109221300. Its totient is φ = 27183744.

The previous prime is 56309401. The next prime is 56309417. The reversal of 56309416 is 61490365.

It can be written as a sum of positive squares in 2 ways, for example, as 51065316 + 5244100 = 7146^2 + 2290^2 .

It is a super-2 number, since 2×56309416² = 6341500660522112, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56309417) 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, 121125 + ... + 121588.

Almost surely, 2^56309416 is an apocalyptic number.

It is an amenable number.

56309416 is a deficient number, since it is larger than the sum of its proper divisors (52911884).

56309416 is a wasteful number, since it uses less digits than its factorization.

56309416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242748 (or 242744 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 56309416 is about 7503.9600212155. The cubic root of 56309416 is about 383.2895755135.

The spelling of 56309416 in words is "fifty-six million, three hundred nine thousand, four hundred sixteen".