1252751264 has 24 divisors (see below), whose sum is σ = 2501095968. Its totient is φ = 617552320.

The previous prime is 1252751249. The next prime is 1252751299. The reversal of 1252751264 is 4621572521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273422 + ... + 277965.

It is an arithmetic number, because the mean of its divisors is an integer number (104212332).

Almost surely, 2^1252751264 is an apocalyptic number.

It is an amenable number.

1252751264 is a deficient number, since it is larger than the sum of its proper divisors (1248344704).

1252751264 is an equidigital number, since it uses as much as digits as its factorization.

1252751264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551468 (or 551460 counting only the distinct ones).

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

The square root of 1252751264 is about 35394.2264218333. The cubic root of 1252751264 is about 1078.0070883681.

The spelling of 1252751264 in words is "one billion, two hundred fifty-two million, seven hundred fifty-one thousand, two hundred sixty-four".