56549013143 has 24 divisors (see below), whose sum is σ = 66650822784. Its totient is φ = 46996666560.

The previous prime is 56549013133. The next prime is 56549013151. The reversal of 56549013143 is 34131094565.

It is a happy number.

It is not a de Polignac number, because 56549013143 - 2²⁰ = 56547964567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 56549013143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56549013133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1903280 + ... + 1932762.

It is an arithmetic number, because the mean of its divisors is an integer number (2777117616).

Almost surely, 2^56549013143 is an apocalyptic number.

56549013143 is a deficient number, since it is larger than the sum of its proper divisors (10101809641).

56549013143 is a wasteful number, since it uses less digits than its factorization.

56549013143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29735 (or 29694 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 56549013143 in words is "fifty-six billion, five hundred forty-nine million, thirteen thousand, one hundred forty-three".