53522390718 has 72 divisors (see below), whose sum is σ = 121382181648. Its totient is φ = 17043181056.

The previous prime is 53522390693. The next prime is 53522390767. The reversal of 53522390718 is 81709322535.

53522390718 is a `hidden beast` number, since 53 + 522 + 3 + 9 + 0 + 71 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8442846 + ... + 8449182.

It is an arithmetic number, because the mean of its divisors is an integer number (1685863634).

Almost surely, 2^53522390718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53522390718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60691090824).

53522390718 is an abundant number, since it is smaller than the sum of its proper divisors (67859790930).

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

53522390718 is a wasteful number, since it uses less digits than its factorization.

53522390718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278 (or 7252 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 53522390718 in words is "fifty-three billion, five hundred twenty-two million, three hundred ninety thousand, seven hundred eighteen".