56749290552 has 128 divisors (see below), whose sum is σ = 163976904000. Its totient is φ = 18162869760.

The previous prime is 56749290547. The next prime is 56749290553. The reversal of 56749290552 is 25509294765.

56749290552 is a `hidden beast` number, since 5 + 67 + 4 + 9 + 29 + 0 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56749290553) 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 31 ways as a sum of consecutive naturals, for example, 1108758 + ... + 1158810.

Almost surely, 2^56749290552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56749290552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81988452000).

56749290552 is an abundant number, since it is smaller than the sum of its proper divisors (107227613448).

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

56749290552 is a wasteful number, since it uses less digits than its factorization.

56749290552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50278 (or 50268 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 54.

The spelling of 56749290552 in words is "fifty-six billion, seven hundred forty-nine million, two hundred ninety thousand, five hundred fifty-two".