56475137 has 4 divisors (see below), whose sum is σ = 56491776. Its totient is φ = 56458500.

The previous prime is 56475121. The next prime is 56475187. The reversal of 56475137 is 73157465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73157465 = 5 ⋅14631493.

It is a cyclic number.

It is not a de Polignac number, because 56475137 - 2⁴ = 56475121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56475137.

It is not an unprimeable number, because it can be changed into a prime (56475187) 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, 1193 + ... + 10694.

It is an arithmetic number, because the mean of its divisors is an integer number (14122944).

Almost surely, 2^56475137 is an apocalyptic number.

It is an amenable number.

56475137 is a deficient number, since it is larger than the sum of its proper divisors (16639).

56475137 is a wasteful number, since it uses less digits than its factorization.

56475137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16638.

The product of its digits is 88200, while the sum is 38.

The square root of 56475137 is about 7514.9941450410. The cubic root of 56475137 is about 383.6652197353.

The spelling of 56475137 in words is "fifty-six million, four hundred seventy-five thousand, one hundred thirty-seven".