56522537 has 4 divisors (see below), whose sum is σ = 58471620. Its totient is φ = 54573456.

The previous prime is 56522527. The next prime is 56522551. The reversal of 56522537 is 73522565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73522565 = 5 ⋅14704513.

It can be written as a sum of positive squares in 2 ways, for example, as 26173456 + 30349081 = 5116^2 + 5509^2 .

It is a cyclic number.

It is not a de Polignac number, because 56522537 - 2⁸ = 56522281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56522497 and 56522506.

It is not an unprimeable number, because it can be changed into a prime (56522527) 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, 974498 + ... + 974555.

It is an arithmetic number, because the mean of its divisors is an integer number (14617905).

Almost surely, 2^56522537 is an apocalyptic number.

It is an amenable number.

56522537 is a deficient number, since it is larger than the sum of its proper divisors (1949083).

56522537 is a wasteful number, since it uses less digits than its factorization.

56522537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949082.

The product of its digits is 63000, while the sum is 35.

The square root of 56522537 is about 7518.1471786604. The cubic root of 56522537 is about 383.7725274046.

The spelling of 56522537 in words is "fifty-six million, five hundred twenty-two thousand, five hundred thirty-seven".