51055184189520 has 1440 divisors, whose sum is σ = 212987558923776. Its totient is φ = 11324642918400.

The previous prime is 51055184189491. The next prime is 51055184189533. The reversal of 51055184189520 is 2598148155015.

51055184189520 is a `hidden beast` number, since 5 + 1 + 0 + 5 + 518 + 4 + 18 + 95 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 15190472640 + ... + 15190476000.

Almost surely, 2^{51055184189520} 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 51055184189520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106493779461888).

51055184189520 is an abundant number, since it is smaller than the sum of its proper divisors (161932374734256).

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

51055184189520 is a wasteful number, since it uses less digits than its factorization.

51055184189520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871 (or 3846 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 54.

The spelling of 51055184189520 in words is "fifty-one trillion, fifty-five billion, one hundred eighty-four million, one hundred eighty-nine thousand, five hundred twenty".