56449971 has 6 divisors (see below), whose sum is σ = 81538860. Its totient is φ = 37633308.

The previous prime is 56449957. The next prime is 56450033. The reversal of 56449971 is 17994465.

It is not a de Polignac number, because 56449971 - 2¹⁰ = 56448947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56449271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3136101 + ... + 3136118.

It is an arithmetic number, because the mean of its divisors is an integer number (13589810).

Almost surely, 2^56449971 is an apocalyptic number.

56449971 is a deficient number, since it is larger than the sum of its proper divisors (25088889).

56449971 is a wasteful number, since it uses less digits than its factorization.

56449971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6272225 (or 6272222 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 56449971 is about 7513.3195725991. The cubic root of 56449971 is about 383.6082226568.

The spelling of 56449971 in words is "fifty-six million, four hundred forty-nine thousand, nine hundred seventy-one".