52555144250520 has 192 divisors, whose sum is σ = 180868924080000. Its totient is φ = 13189041782784.

The previous prime is 52555144250447. The next prime is 52555144250579. The reversal of 52555144250520 is 2505244155525.

52555144250520 is a `hidden beast` number, since 5 + 2 + 5 + 551 + 4 + 42 + 5 + 0 + 52 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 64029681 + ... + 64845279.

It is an arithmetic number, because the mean of its divisors is an integer number (942025646250).

Almost surely, 2^{52555144250520} 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 52555144250520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90434462040000).

52555144250520 is an abundant number, since it is smaller than the sum of its proper divisors (128313779829480).

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

52555144250520 is a wasteful number, since it uses less digits than its factorization.

52555144250520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826162 (or 826155 counting only the distinct ones).

The product of its (nonzero) digits is 2000000, while the sum is 45.

The spelling of 52555144250520 in words is "fifty-two trillion, five hundred fifty-five billion, one hundred forty-four million, two hundred fifty thousand, five hundred twenty".