56816415 has 12 divisors (see below), whose sum is σ = 98481864. Its totient is φ = 30302064.

The previous prime is 56816413. The next prime is 56816429. The reversal of 56816415 is 51461865.

56816415 is a `hidden beast` number, since 5 + 6 + 8 + 1 + 641 + 5 = 666.

It is not a de Polignac number, because 56816415 - 2¹ = 56816413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56816415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631249 + ... + 631338.

It is an arithmetic number, because the mean of its divisors is an integer number (8206822).

Almost surely, 2^56816415 is an apocalyptic number.

56816415 is a deficient number, since it is larger than the sum of its proper divisors (41665449).

56816415 is a wasteful number, since it uses less digits than its factorization.

56816415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262598 (or 1262595 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 56816415 is about 7537.6664160733. Note that the first 3 decimals coincide. The cubic root of 56816415 is about 384.4364950193.

The spelling of 56816415 in words is "fifty-six million, eight hundred sixteen thousand, four hundred fifteen".