56093639 has 4 divisors (see below), whose sum is σ = 64107024. Its totient is φ = 48080256.

The previous prime is 56093603. The next prime is 56093647. The reversal of 56093639 is 93639065.

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

It is not a de Polignac number, because 56093639 - 2⁸ = 56093383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56093596 and 56093605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56093039) 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, 4006682 + ... + 4006695.

It is an arithmetic number, because the mean of its divisors is an integer number (16026756).

Almost surely, 2^56093639 is an apocalyptic number.

56093639 is a deficient number, since it is larger than the sum of its proper divisors (8013385).

56093639 is an equidigital number, since it uses as much as digits as its factorization.

56093639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013384.

The product of its (nonzero) digits is 131220, while the sum is 41.

The square root of 56093639 is about 7489.5686791697. The cubic root of 56093639 is about 382.7993618115.

The spelling of 56093639 in words is "fifty-six million, ninety-three thousand, six hundred thirty-nine".