56900605 has 4 divisors (see below), whose sum is σ = 68280732. Its totient is φ = 45520480.

The previous prime is 56900563. The next prime is 56900609. The reversal of 56900605 is 50600965.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15452761 + 41447844 = 3931^2 + 6438^2 .

It is not a de Polignac number, because 56900605 - 2⁹ = 56900093 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 (56900609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5690056 + ... + 5690065.

It is an arithmetic number, because the mean of its divisors is an integer number (17070183).

Almost surely, 2^56900605 is an apocalyptic number.

It is an amenable number.

56900605 is a deficient number, since it is larger than the sum of its proper divisors (11380127).

56900605 is a wasteful number, since it uses less digits than its factorization.

56900605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380126.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 56900605 is about 7543.2489684485. The cubic root of 56900605 is about 384.6262860346.

The spelling of 56900605 in words is "fifty-six million, nine hundred thousand, six hundred five".