56235137 has 4 divisors (see below), whose sum is σ = 64268736. Its totient is φ = 48201540.

The previous prime is 56235131. The next prime is 56235139. The reversal of 56235137 is 73153265.

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: 73153265 = 5 ⋅14630653.

It is a cyclic number.

It is not a de Polignac number, because 56235137 - 2⁴ = 56235121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56235131) 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, 4016789 + ... + 4016802.

It is an arithmetic number, because the mean of its divisors is an integer number (16067184).

Almost surely, 2^56235137 is an apocalyptic number.

It is an amenable number.

56235137 is a deficient number, since it is larger than the sum of its proper divisors (8033599).

56235137 is an equidigital number, since it uses as much as digits as its factorization.

56235137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033598.

The product of its digits is 18900, while the sum is 32.

The square root of 56235137 is about 7499.0090678702. The cubic root of 56235137 is about 383.1209660919.

The spelling of 56235137 in words is "fifty-six million, two hundred thirty-five thousand, one hundred thirty-seven".