52174172520 has 256 divisors, whose sum is σ = 183333888000. Its totient is φ = 13161657600.

The previous prime is 52174172461. The next prime is 52174172543. The reversal of 52174172520 is 2527147125.

52174172520 is a `hidden beast` number, since 5 + 21 + 7 + 41 + 72 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18692325 + ... + 18695115.

It is an arithmetic number, because the mean of its divisors is an integer number (716148000).

Almost surely, 2^52174172520 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 52174172520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91666944000).

52174172520 is an abundant number, since it is smaller than the sum of its proper divisors (131159715480).

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

52174172520 is a wasteful number, since it uses less digits than its factorization.

52174172520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741 (or 3731 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 52174172520 in words is "fifty-two billion, one hundred seventy-four million, one hundred seventy-two thousand, five hundred twenty".