56090887 has 4 divisors (see below), whose sum is σ = 57041640. Its totient is φ = 55140136.

The previous prime is 56090861. The next prime is 56090897. The reversal of 56090887 is 78809065.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56090887 - 2⁷ = 56090759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56090807) 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, 475288 + ... + 475405.

It is an arithmetic number, because the mean of its divisors is an integer number (14260410).

Almost surely, 2^56090887 is an apocalyptic number.

56090887 is a deficient number, since it is larger than the sum of its proper divisors (950753).

56090887 is an equidigital number, since it uses as much as digits as its factorization.

56090887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950752.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 56090887 is about 7489.3849547209. The cubic root of 56090887 is about 382.7931015587.

The spelling of 56090887 in words is "fifty-six million, ninety thousand, eight hundred eighty-seven".