56383639 has 6 divisors (see below), whose sum is σ = 61054656. Its totient is φ = 52046280.

The previous prime is 56383633. The next prime is 56383661. The reversal of 56383639 is 93638365.

56383639 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 56383639 - 2¹³ = 56375447 is a prime.

It is a super-2 number, since 2×56383639² = 6358229493764642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56383595 and 56383604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56383633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166647 + ... + 166984.

It is an arithmetic number, because the mean of its divisors is an integer number (10175776).

Almost surely, 2^56383639 is an apocalyptic number.

56383639 is a deficient number, since it is larger than the sum of its proper divisors (4671017).

56383639 is a wasteful number, since it uses less digits than its factorization.

56383639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333657 (or 333644 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The square root of 56383639 is about 7508.9039812745. The cubic root of 56383639 is about 383.4579097731.

The spelling of 56383639 in words is "fifty-six million, three hundred eighty-three thousand, six hundred thirty-nine".