56499881 has 8 divisors (see below), whose sum is σ = 57388800. Its totient is φ = 55617408.

The previous prime is 56499871. The next prime is 56499889. The reversal of 56499881 is 18899465.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56499881 - 2¹⁰ = 56498857 is a prime.

It is a super-2 number, since 2×56499881² = 6384473106028322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56499889) 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, 17840 + ... + 20766.

It is an arithmetic number, because the mean of its divisors is an integer number (7173600).

Almost surely, 2^56499881 is an apocalyptic number.

It is an amenable number.

56499881 is a deficient number, since it is larger than the sum of its proper divisors (888919).

56499881 is a wasteful number, since it uses less digits than its factorization.

56499881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223.

The product of its digits is 622080, while the sum is 50.

The square root of 56499881 is about 7516.6402734200. The cubic root of 56499881 is about 383.7212445429.

The spelling of 56499881 in words is "fifty-six million, four hundred ninety-nine thousand, eight hundred eighty-one".