251151151052 has 24 divisors (see below), whose sum is σ = 441230573616. Its totient is φ = 125085693888.

The previous prime is 251151151021. The next prime is 251151151073. The reversal of 251151151052 is 250151151152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389838 + ... + 2492714.

It is an arithmetic number, because the mean of its divisors is an integer number (18384607234).

Almost surely, 2^251151151052 is an apocalyptic number.

It is an amenable number.

251151151052 is a deficient number, since it is larger than the sum of its proper divisors (190079422564).

251151151052 is a wasteful number, since it uses less digits than its factorization.

251151151052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105257 (or 105255 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 29.

The spelling of 251151151052 in words is "two hundred fifty-one billion, one hundred fifty-one million, one hundred fifty-one thousand, fifty-two".