251116652 has 12 divisors (see below), whose sum is σ = 439872720. Its totient is φ = 125438736.

The previous prime is 251116643. The next prime is 251116667. The reversal of 251116652 is 256611152.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25088 + ... + 33639.

It is an arithmetic number, because the mean of its divisors is an integer number (36656060).

Almost surely, 2^251116652 is an apocalyptic number.

It is an amenable number.

251116652 is a deficient number, since it is larger than the sum of its proper divisors (188756068).

251116652 is a wasteful number, since it uses less digits than its factorization.

251116652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59800 (or 59798 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 251116652 is about 15846.6605945859. The cubic root of 251116652 is about 630.8970608556.

The spelling of 251116652 in words is "two hundred fifty-one million, one hundred sixteen thousand, six hundred fifty-two".