1252566412 has 24 divisors (see below), whose sum is σ = 2338977200. Its totient is φ = 585190656.

The previous prime is 1252566397. The next prime is 1252566457. The reversal of 1252566412 is 2146652521.

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 in 7 ways as a sum of consecutive naturals, for example, 107337 + ... + 118432.

Almost surely, 2^1252566412 is an apocalyptic number.

It is an amenable number.

1252566412 is a deficient number, since it is larger than the sum of its proper divisors (1086410788).

1252566412 is a wasteful number, since it uses less digits than its factorization.

1252566412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225865 (or 225863 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1252566412 is about 35391.6149956455. The cubic root of 1252566412 is about 1077.9540633253.

The spelling of 1252566412 in words is "one billion, two hundred fifty-two million, five hundred sixty-six thousand, four hundred twelve".