56189639 has 16 divisors (see below), whose sum is σ = 64834560. Its totient is φ = 48216000.

The previous prime is 56189629. The next prime is 56189657. The reversal of 56189639 is 93698165.

It is not a de Polignac number, because 56189639 - 2¹² = 56185543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56189593 and 56189602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56189629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11972 + ... + 15990.

It is an arithmetic number, because the mean of its divisors is an integer number (4052160).

Almost surely, 2^56189639 is an apocalyptic number.

56189639 is a deficient number, since it is larger than the sum of its proper divisors (8644921).

56189639 is a wasteful number, since it uses less digits than its factorization.

56189639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102.

The product of its digits is 349920, while the sum is 47.

The square root of 56189639 is about 7495.9748532129. The cubic root of 56189639 is about 383.0176146893.

The spelling of 56189639 in words is "fifty-six million, one hundred eighty-nine thousand, six hundred thirty-nine".