56641399 has 6 divisors (see below), whose sum is σ = 60169544. Its totient is φ = 53309280.

The previous prime is 56641397. The next prime is 56641427. The reversal of 56641399 is 99314665.

It is not a de Polignac number, because 56641399 - 2¹ = 56641397 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 (56641397) 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, 97707 + ... + 98284.

Almost surely, 2^56641399 is an apocalyptic number.

56641399 is a deficient number, since it is larger than the sum of its proper divisors (3528145).

56641399 is a wasteful number, since it uses less digits than its factorization.

56641399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196025 (or 196008 counting only the distinct ones).

The product of its digits is 174960, while the sum is 43.

The square root of 56641399 is about 7526.0480333306. The cubic root of 56641399 is about 384.0413525164.

The spelling of 56641399 in words is "fifty-six million, six hundred forty-one thousand, three hundred ninety-nine".