56637413 has 4 divisors (see below), whose sum is σ = 64728480. Its totient is φ = 48546348.

The previous prime is 56637409. The next prime is 56637437. The reversal of 56637413 is 31473665.

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: 31473665 = 5 ⋅6294733.

It is a cyclic number.

It is not a de Polignac number, because 56637413 - 2² = 56637409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56636413) 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, 4045523 + ... + 4045536.

It is an arithmetic number, because the mean of its divisors is an integer number (16182120).

Almost surely, 2^56637413 is an apocalyptic number.

It is an amenable number.

56637413 is a deficient number, since it is larger than the sum of its proper divisors (8091067).

56637413 is an equidigital number, since it uses as much as digits as its factorization.

56637413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091066.

The product of its digits is 45360, while the sum is 35.

The square root of 56637413 is about 7525.7832150548. The cubic root of 56637413 is about 384.0323436479.

The spelling of 56637413 in words is "fifty-six million, six hundred thirty-seven thousand, four hundred thirteen".