56138475 has 12 divisors (see below), whose sum is σ = 92815736. Its totient is φ = 29940480.

The previous prime is 56138473. The next prime is 56138477. The reversal of 56138475 is 57483165.

It is an interprime number because it is at equal distance from previous prime (56138473) and next prime (56138477).

It is not a de Polignac number, because 56138475 - 2¹ = 56138473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56138473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374182 + ... + 374331.

Almost surely, 2^56138475 is an apocalyptic number.

56138475 is a deficient number, since it is larger than the sum of its proper divisors (36677261).

56138475 is a wasteful number, since it uses less digits than its factorization.

56138475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748526 (or 748521 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 56138475 is about 7492.5613110605. The cubic root of 56138475 is about 382.9013259655.

The spelling of 56138475 in words is "fifty-six million, one hundred thirty-eight thousand, four hundred seventy-five".