54215961057720 has 768 divisors, whose sum is σ = 224250901954560. Its totient is φ = 11033366400000.

The previous prime is 54215961057679. The next prime is 54215961057733. The reversal of 54215961057720 is 2775016951245.

54215961057720 is a `hidden beast` number, since 5 + 4 + 2 + 1 + 5 + 9 + 61 + 0 + 577 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 297094905 + ... + 297277335.

It is an arithmetic number, because the mean of its divisors is an integer number (291993361920).

Almost surely, 2^{54215961057720} 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 54215961057720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112125450977280).

54215961057720 is an abundant number, since it is smaller than the sum of its proper divisors (170034940896840).

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

54215961057720 is a wasteful number, since it uses less digits than its factorization.

54215961057720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182688 (or 182681 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 54215961057720 in words is "fifty-four trillion, two hundred fifteen billion, nine hundred sixty-one million, fifty-seven thousand, seven hundred twenty".