56738905 has 4 divisors (see below), whose sum is σ = 68086692. Its totient is φ = 45391120.

The previous prime is 56738881. The next prime is 56738923. The reversal of 56738905 is 50983765.

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 18558864 + 38180041 = 4308^2 + 6179^2 .

It is not a de Polignac number, because 56738905 - 2⁷ = 56738777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5673886 + ... + 5673895.

It is an arithmetic number, because the mean of its divisors is an integer number (17021673).

Almost surely, 2^56738905 is an apocalyptic number.

It is an amenable number.

56738905 is a deficient number, since it is larger than the sum of its proper divisors (11347787).

56738905 is a wasteful number, since it uses less digits than its factorization.

56738905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11347786.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 56738905 is about 7532.5231496491. The cubic root of 56738905 is about 384.2615970126.

The spelling of 56738905 in words is "fifty-six million, seven hundred thirty-eight thousand, nine hundred five".