1252551112 has 32 divisors (see below), whose sum is σ = 2478211200. Its totient is φ = 592307584.

The previous prime is 1252551073. The next prime is 1252551149. The reversal of 1252551112 is 2111552521.

It is a happy 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 in 7 ways as a sum of consecutive naturals, for example, 21868 + ... + 54619.

It is an arithmetic number, because the mean of its divisors is an integer number (77444100).

Almost surely, 2^1252551112 is an apocalyptic number.

It is an amenable number.

1252551112 is a deficient number, since it is larger than the sum of its proper divisors (1225660088).

1252551112 is a wasteful number, since it uses less digits than its factorization.

1252551112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76605 (or 76601 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 1252551112 is about 35391.3988420916. The cubic root of 1252551112 is about 1077.9496742661.

The spelling of 1252551112 in words is "one billion, two hundred fifty-two million, five hundred fifty-one thousand, one hundred twelve".