56523837 has 4 divisors (see below), whose sum is σ = 75365120. Its totient is φ = 37682556.

The previous prime is 56523833. The next prime is 56523839. The reversal of 56523837 is 73832565.

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.

It is not a de Polignac number, because 56523837 - 2² = 56523833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56523795 and 56523804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56523833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9420637 + ... + 9420642.

It is an arithmetic number, because the mean of its divisors is an integer number (18841280).

Almost surely, 2^56523837 is an apocalyptic number.

It is an amenable number.

56523837 is a deficient number, since it is larger than the sum of its proper divisors (18841283).

56523837 is a wasteful number, since it uses less digits than its factorization.

56523837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18841282.

The product of its digits is 151200, while the sum is 39.

The square root of 56523837 is about 7518.2336356354. The cubic root of 56523837 is about 383.7754695966.

The spelling of 56523837 in words is "fifty-six million, five hundred twenty-three thousand, eight hundred thirty-seven".