56275537 has 4 divisors (see below), whose sum is σ = 56413540. Its totient is φ = 56137536.

The previous prime is 56275507. The next prime is 56275543. The reversal of 56275537 is 73557265.

56275537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44742721 + 11532816 = 6689^2 + 3396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56275537 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 56275537.

It is not an unprimeable number, because it can be changed into a prime (56275507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68388 + ... + 69205.

It is an arithmetic number, because the mean of its divisors is an integer number (14103385).

Almost surely, 2^56275537 is an apocalyptic number.

It is an amenable number.

56275537 is a deficient number, since it is larger than the sum of its proper divisors (138003).

56275537 is a wasteful number, since it uses less digits than its factorization.

56275537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138002.

The product of its digits is 220500, while the sum is 40.

The square root of 56275537 is about 7501.7022734843. The cubic root of 56275537 is about 383.2126903695.

The spelling of 56275537 in words is "fifty-six million, two hundred seventy-five thousand, five hundred thirty-seven".