252782550 has 72 divisors (see below), whose sum is σ = 690725880. Its totient is φ = 66259200.

The previous prime is 252782539. The next prime is 252782611. The reversal of 252782550 is 55287252.

252782550 is a `hidden beast` number, since 2 + 5 + 27 + 82 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21790 + ... + 31310.

It is an arithmetic number, because the mean of its divisors is an integer number (9593415).

Almost surely, 2^252782550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252782550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345362940).

252782550 is an abundant number, since it is smaller than the sum of its proper divisors (437943330).

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

252782550 is a wasteful number, since it uses less digits than its factorization.

252782550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9598 (or 9590 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 252782550 is about 15899.1367690199. The cubic root of 252782550 is about 632.2891025640.

The spelling of 252782550 in words is "two hundred fifty-two million, seven hundred eighty-two thousand, five hundred fifty".