252502736 has 10 divisors (see below), whose sum is σ = 489224082. Its totient is φ = 126251360.

The previous prime is 252502709. The next prime is 252502741. The reversal of 252502736 is 637205252.

It can be written as a sum of positive squares in only one way, i.e., 159264400 + 93238336 = 12620^2 + 9656^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7890695 + ... + 7890726.

Almost surely, 2^252502736 is an apocalyptic number.

It is an amenable number.

252502736 is a deficient number, since it is larger than the sum of its proper divisors (236721346).

252502736 is a wasteful number, since it uses less digits than its factorization.

252502736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15781429 (or 15781423 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 252502736 is about 15890.3346723724. The cubic root of 252502736 is about 632.0557153253.

Adding to 252502736 its reverse (637205252), we get a palindrome (889707988).

The spelling of 252502736 in words is "two hundred fifty-two million, five hundred two thousand, seven hundred thirty-six".