1252555424 has 12 divisors (see below), whose sum is σ = 2465968554. Its totient is φ = 626277696.

The previous prime is 1252555417. The next prime is 1252555433. The reversal of 1252555424 is 4245552521.

It can be written as a sum of positive squares in only one way, i.e., 1071383824 + 181171600 = 32732^2 + 13460^2 .

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, 19571147 + ... + 19571210.

Almost surely, 2^1252555424 is an apocalyptic number.

It is an amenable number.

1252555424 is a deficient number, since it is larger than the sum of its proper divisors (1213413130).

1252555424 is an equidigital number, since it uses as much as digits as its factorization.

1252555424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39142367 (or 39142359 counting only the distinct ones).

The product of its digits is 80000, while the sum is 35.

The square root of 1252555424 is about 35391.4597607954. The cubic root of 1252555424 is about 1077.9509112385.

The spelling of 1252555424 in words is "one billion, two hundred fifty-two million, five hundred fifty-five thousand, four hundred twenty-four".