56340637 has 4 divisors (see below), whose sum is σ = 57264316. Its totient is φ = 55416960.

The previous prime is 56340631. The next prime is 56340689. The reversal of 56340637 is 73604365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73604365 = 5 ⋅14720873.

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 45010681 = 3366^2 + 6709^2 .

It is a cyclic number.

It is not a de Polignac number, because 56340637 - 2¹⁵ = 56307869 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 (56340631) 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, 461748 + ... + 461869.

It is an arithmetic number, because the mean of its divisors is an integer number (14316079).

Almost surely, 2^56340637 is an apocalyptic number.

It is an amenable number.

56340637 is a deficient number, since it is larger than the sum of its proper divisors (923679).

56340637 is an equidigital number, since it uses as much as digits as its factorization.

56340637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923678.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 56340637 is about 7506.0400345322. The cubic root of 56340637 is about 383.3604012812.

The spelling of 56340637 in words is "fifty-six million, three hundred forty thousand, six hundred thirty-seven".