56402499 has 8 divisors (see below), whose sum is σ = 75266752. Its totient is φ = 37569960.

The previous prime is 56402473. The next prime is 56402519. The reversal of 56402499 is 99420465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56402499 - 2¹¹ = 56400451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56402459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3409 + ... + 11154.

It is an arithmetic number, because the mean of its divisors is an integer number (9408344).

Almost surely, 2^56402499 is an apocalyptic number.

56402499 is a deficient number, since it is larger than the sum of its proper divisors (18864253).

56402499 is a wasteful number, since it uses less digits than its factorization.

56402499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 56402499 is about 7510.1597186744. The cubic root of 56402499 is about 383.5006598220.

The spelling of 56402499 in words is "fifty-six million, four hundred two thousand, four hundred ninety-nine".