56785455 has 40 divisors (see below), whose sum is σ = 102389232. Its totient is φ = 30233088.

The previous prime is 56785439. The next prime is 56785481. The reversal of 56785455 is 55458765.

56785455 is a `hidden beast` number, since 567 + 85 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 56785455 - 2⁴ = 56785439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56785455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 98127 + ... + 98703.

Almost surely, 2^56785455 is an apocalyptic number.

56785455 is a deficient number, since it is larger than the sum of its proper divisors (45603777).

56785455 is an frugal number, since it uses more digits than its factorization.

56785455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 585 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 56785455 is about 7535.6124502259. The cubic root of 56785455 is about 384.3666541912.

The spelling of 56785455 in words is "fifty-six million, seven hundred eighty-five thousand, four hundred fifty-five".