55556415 has 16 divisors (see below), whose sum is σ = 98767200. Its totient is φ = 29630016.

The previous prime is 55556359. The next prime is 55556429. The reversal of 55556415 is 51465555.

55556415 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 641 + 5 = 666.

It is not a de Polignac number, because 55556415 - 2¹⁰ = 55555391 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55556415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205630 + ... + 205899.

It is an arithmetic number, because the mean of its divisors is an integer number (6172950).

Almost surely, 2^55556415 is an apocalyptic number.

55556415 is a deficient number, since it is larger than the sum of its proper divisors (43210785).

55556415 is a wasteful number, since it uses less digits than its factorization.

55556415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411543 (or 411537 counting only the distinct ones).

The product of its digits is 75000, while the sum is 36.

The square root of 55556415 is about 7453.6175780623. The cubic root of 55556415 is about 381.5733818109.

The spelling of 55556415 in words is "fifty-five million, five hundred fifty-six thousand, four hundred fifteen".