56838907 has 4 divisors (see below), whose sum is σ = 57247960. Its totient is φ = 56429856.

The previous prime is 56838877. The next prime is 56838917. The reversal of 56838907 is 70983865.

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 56838907 - 2¹⁹ = 56314619 is a prime.

It is a super-2 number, since 2×56838907² = 6461322697909298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56838917) 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, 204318 + ... + 204595.

It is an arithmetic number, because the mean of its divisors is an integer number (14311990).

Almost surely, 2^56838907 is an apocalyptic number.

56838907 is a deficient number, since it is larger than the sum of its proper divisors (409053).

56838907 is a wasteful number, since it uses less digits than its factorization.

56838907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409052.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 56838907 is about 7539.1582421382. The cubic root of 56838907 is about 384.4872174786.

The spelling of 56838907 in words is "fifty-six million, eight hundred thirty-eight thousand, nine hundred seven".