251996876 has 12 divisors (see below), whose sum is σ = 447036072. Its totient is φ = 124272288.

The previous prime is 251996873. The next prime is 251996879. The reversal of 251996876 is 678699152.

It is an interprime number because it is at equal distance from previous prime (251996873) and next prime (251996879).

It is not an unprimeable number, because it can be changed into a prime (251996873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 431210 + ... + 431793.

It is an arithmetic number, because the mean of its divisors is an integer number (37253006).

Almost surely, 2^251996876 is an apocalyptic number.

It is an amenable number.

251996876 is a deficient number, since it is larger than the sum of its proper divisors (195039196).

251996876 is a wasteful number, since it uses less digits than its factorization.

251996876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863080 (or 863078 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The square root of 251996876 is about 15874.4094693314. The cubic root of 251996876 is about 631.6333496613.

The spelling of 251996876 in words is "two hundred fifty-one million, nine hundred ninety-six thousand, eight hundred seventy-six".