54319521072 has 80 divisors (see below), whose sum is σ = 145317315168. Its totient is φ = 17473597440.

The previous prime is 54319521037. The next prime is 54319521119. The reversal of 54319521072 is 27012591345.

It is a super-2 number, since 2×54319521072² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54319521072.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19833 + ... + 330200.

Almost surely, 2^54319521072 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 54319521072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72658657584).

54319521072 is an abundant number, since it is smaller than the sum of its proper divisors (90997794096).

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

54319521072 is a wasteful number, since it uses less digits than its factorization.

54319521072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350158 (or 350152 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 54319521072 in words is "fifty-four billion, three hundred nineteen million, five hundred twenty-one thousand, seventy-two".