56554471325 has 72 divisors (see below), whose sum is σ = 79414917120. Its totient is φ = 39893040000.

The previous prime is 56554471321. The next prime is 56554471331. The reversal of 56554471325 is 52317445565.

It is not a de Polignac number, because 56554471325 - 2² = 56554471321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56554471325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56554471321) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 49134500 + ... + 49135650.

It is an arithmetic number, because the mean of its divisors is an integer number (1102984960).

Almost surely, 2^56554471325 is an apocalyptic number.

56554471325 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56554471325 is a deficient number, since it is larger than the sum of its proper divisors (22860445795).

56554471325 is a wasteful number, since it uses less digits than its factorization.

56554471325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1643 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 47.

The spelling of 56554471325 in words is "fifty-six billion, five hundred fifty-four million, four hundred seventy-one thousand, three hundred twenty-five".