5235721056 has 36 divisors (see below), whose sum is σ = 14889082572. Its totient is φ = 1745240256.

The previous prime is 5235721039. The next prime is 5235721067. The reversal of 5235721056 is 6501275325.

5235721056 is a `hidden beast` number, since 5 + 23 + 572 + 10 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5235721056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9089506 + ... + 9090081.

It is an arithmetic number, because the mean of its divisors is an integer number (413585627).

Almost surely, 2^5235721056 is an apocalyptic number.

It is an amenable number.

5235721056 is an abundant number, since it is smaller than the sum of its proper divisors (9653361516).

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

5235721056 is a wasteful number, since it uses less digits than its factorization.

5235721056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18179603 (or 18179592 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 5235721056 is about 72358.2825666834. The cubic root of 5235721056 is about 1736.4362095519.

The spelling of 5235721056 in words is "five billion, two hundred thirty-five million, seven hundred twenty-one thousand, fifty-six".