53331516225 has 144 divisors (see below), whose sum is σ = 107730604800. Its totient is φ = 25023398400.

The previous prime is 53331516209. The next prime is 53331516257. The reversal of 53331516225 is 52261513335.

53331516225 is a `hidden beast` number, since 53 + 331 + 51 + 6 + 225 = 666.

53331516225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53331516225 - 2⁴ = 53331516209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53331516225.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20921251 + ... + 20923799.

It is an arithmetic number, because the mean of its divisors is an integer number (748129200).

Almost surely, 2^53331516225 is an apocalyptic number.

It is an amenable number.

53331516225 is an abundant number, since it is smaller than the sum of its proper divisors (54399088575).

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

53331516225 is a wasteful number, since it uses less digits than its factorization.

53331516225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2904 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The spelling of 53331516225 in words is "fifty-three billion, three hundred thirty-one million, five hundred sixteen thousand, two hundred twenty-five".