1252715264 has 18 divisors (see below), whose sum is σ = 2500537620. Its totient is φ = 626357504.

The previous prime is 1252715257. The next prime is 1252715279. The reversal of 1252715264 is 4625172521.

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, 2446454 + ... + 2446965.

Almost surely, 2^1252715264 is an apocalyptic number.

It is an amenable number.

1252715264 is a deficient number, since it is larger than the sum of its proper divisors (1247822356).

1252715264 is an frugal number, since it uses more digits than its factorization.

1252715264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893435 (or 4893421 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 1252715264 is about 35393.7178606600. The cubic root of 1252715264 is about 1077.9967621291.

Adding to 1252715264 its reverse (4625172521), we get a palindrome (5877887785).

The spelling of 1252715264 in words is "one billion, two hundred fifty-two million, seven hundred fifteen thousand, two hundred sixty-four".