56499621 has 8 divisors (see below), whose sum is σ = 75380064. Its totient is φ = 37642800.

The previous prime is 56499613. The next prime is 56499623. The reversal of 56499621 is 12699465.

It is a happy number.

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

It is not a de Polignac number, because 56499621 - 2³ = 56499613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56499623) 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, 750 + ... + 10656.

It is an arithmetic number, because the mean of its divisors is an integer number (9422508).

Almost surely, 2^56499621 is an apocalyptic number.

It is an amenable number.

56499621 is a deficient number, since it is larger than the sum of its proper divisors (18880443).

56499621 is a wasteful number, since it uses less digits than its factorization.

56499621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11811.

The product of its digits is 116640, while the sum is 42.

The square root of 56499621 is about 7516.6229784392. The cubic root of 56499621 is about 383.7206559418.

The spelling of 56499621 in words is "fifty-six million, four hundred ninety-nine thousand, six hundred twenty-one".