54622736520 has 128 divisors (see below), whose sum is σ = 178845511680. Its totient is φ = 13235936000.

The previous prime is 54622736491. The next prime is 54622736551. The reversal of 54622736520 is 2563722645.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3412135 + ... + 3428105.

It is an arithmetic number, because the mean of its divisors is an integer number (1397230560).

Almost surely, 2^54622736520 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 54622736520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89422755840).

54622736520 is an abundant number, since it is smaller than the sum of its proper divisors (124222775160).

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

54622736520 is a wasteful number, since it uses less digits than its factorization.

54622736520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18587 (or 18583 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 54622736520 in words is "fifty-four billion, six hundred twenty-two million, seven hundred thirty-six thousand, five hundred twenty".