55715130793920 has 448 divisors, whose sum is σ = 203634096712704. Its totient is φ = 12798252318720.

The previous prime is 55715130793849. The next prime is 55715130793921. The reversal of 55715130793920 is 2939703151755.

It is a super-2 number, since 2×55715130793920² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55715130793921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9401539 + ... + 14135741.

It is an arithmetic number, because the mean of its divisors is an integer number (454540394448).

Almost surely, 2^{55715130793920} 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 55715130793920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101817048356352).

55715130793920 is an abundant number, since it is smaller than the sum of its proper divisors (147918965918784).

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

55715130793920 is a wasteful number, since it uses less digits than its factorization.

55715130793920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734300 (or 4734290 counting only the distinct ones).

The product of its (nonzero) digits is 8930250, while the sum is 57.

The spelling of 55715130793920 in words is "fifty-five trillion, seven hundred fifteen billion, one hundred thirty million, seven hundred ninety-three thousand, nine hundred twenty".