56521552352 has 96 divisors (see below), whose sum is σ = 116021808000. Its totient is φ = 27088109568.

The previous prime is 56521552333. The next prime is 56521552357. The reversal of 56521552352 is 25325512565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56521552357) 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 15 ways as a sum of consecutive naturals, for example, 12994274 + ... + 12998622.

It is an arithmetic number, because the mean of its divisors is an integer number (1208560500).

Almost surely, 2^56521552352 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 56521552352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58010904000).

56521552352 is an abundant number, since it is smaller than the sum of its proper divisors (59500255648).

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

56521552352 is a wasteful number, since it uses less digits than its factorization.

56521552352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588 (or 4580 counting only the distinct ones).

The product of its digits is 450000, while the sum is 41.

The spelling of 56521552352 in words is "fifty-six billion, five hundred twenty-one million, five hundred fifty-two thousand, three hundred fifty-two".