252751526390 has 48 divisors (see below), whose sum is σ = 506402245440. Its totient is φ = 90746198400.

The previous prime is 252751526369. The next prime is 252751526407. The reversal of 252751526390 is 93625157252.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1226471 + ... + 1417650.

It is an arithmetic number, because the mean of its divisors is an integer number (10550046780).

Almost surely, 2^252751526390 is an apocalyptic number.

252751526390 is an abundant number, since it is smaller than the sum of its proper divisors (253650719050).

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

252751526390 is a wasteful number, since it uses less digits than its factorization.

252751526390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644229 (or 2644218 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 252751526390 in words is "two hundred fifty-two billion, seven hundred fifty-one million, five hundred twenty-six thousand, three hundred ninety".