54725257520 has 20 divisors (see below), whose sum is σ = 127236223920. Its totient is φ = 21890102976.

The previous prime is 54725257519. The next prime is 54725257553. The reversal of 54725257520 is 2575252745.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342032780 + ... + 342032939.

It is an arithmetic number, because the mean of its divisors is an integer number (6361811196).

Almost surely, 2^54725257520 is an apocalyptic number.

It is an amenable number.

54725257520 is an abundant number, since it is smaller than the sum of its proper divisors (72510966400).

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

54725257520 is a wasteful number, since it uses less digits than its factorization.

54725257520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684065732 (or 684065726 counting only the distinct ones).

The product of its (nonzero) digits is 980000, while the sum is 44.

The spelling of 54725257520 in words is "fifty-four billion, seven hundred twenty-five million, two hundred fifty-seven thousand, five hundred twenty".