56533451544 has 48 divisors (see below), whose sum is σ = 154627405920. Its totient is φ = 18657902400.

The previous prime is 56533451521. The next prime is 56533451549. The reversal of 56533451544 is 44515433565.

It is a happy number.

56533451544 is a `hidden beast` number, since 5 + 6 + 53 + 3 + 4 + 51 + 544 = 666.

It is a super-2 number, since 2×56533451544² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56533451544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56533451549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3879792 + ... + 3894335.

It is an arithmetic number, because the mean of its divisors is an integer number (3221404290).

Almost surely, 2^56533451544 is an apocalyptic number.

It is an amenable number.

56533451544 is an abundant number, since it is smaller than the sum of its proper divisors (98093954376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56533451544 is a wasteful number, since it uses less digits than its factorization.

56533451544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7774240 (or 7774233 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The spelling of 56533451544 in words is "fifty-six billion, five hundred thirty-three million, four hundred fifty-one thousand, five hundred forty-four".