53115194880 has 320 divisors, whose sum is σ = 205824326400. Its totient is φ = 12876226560.

The previous prime is 53115194879. The next prime is 53115194911. The reversal of 53115194880 is 8849151135.

53115194880 is a `hidden beast` number, since 5 + 3 + 11 + 519 + 48 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent 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, 725391 + ... + 795249.

It is an arithmetic number, because the mean of its divisors is an integer number (643201020).

Almost surely, 2^53115194880 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 53115194880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102912163200).

53115194880 is an abundant number, since it is smaller than the sum of its proper divisors (152709131520).

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

53115194880 is a wasteful number, since it uses less digits than its factorization.

53115194880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69902 (or 69880 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 45.

The spelling of 53115194880 in words is "fifty-three billion, one hundred fifteen million, one hundred ninety-four thousand, eight hundred eighty".