53531220624 has 160 divisors (see below), whose sum is σ = 159272305920. Its totient is φ = 15176318976.

The previous prime is 53531220623. The next prime is 53531220629. The reversal of 53531220624 is 42602213535.

It is a happy number.

53531220624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (53531220623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26382042 + ... + 26384070.

It is an arithmetic number, because the mean of its divisors is an integer number (995451912).

Almost surely, 2^53531220624 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 53531220624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79636152960).

53531220624 is an abundant number, since it is smaller than the sum of its proper divisors (105741085296).

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

53531220624 is a wasteful number, since it uses less digits than its factorization.

53531220624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 53531220624 in words is "fifty-three billion, five hundred thirty-one million, two hundred twenty thousand, six hundred twenty-four".