251332982 has 4 divisors (see below), whose sum is σ = 376999476. Its totient is φ = 125666490.

The previous prime is 251332883. The next prime is 251332997. The reversal of 251332982 is 289233152.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62833244 + ... + 62833247.

It is an arithmetic number, because the mean of its divisors is an integer number (94249869).

Almost surely, 2^251332982 is an apocalyptic number.

251332982 is a deficient number, since it is larger than the sum of its proper divisors (125666494).

251332982 is a wasteful number, since it uses less digits than its factorization.

251332982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125666493.

The product of its digits is 25920, while the sum is 35.

The square root of 251332982 is about 15853.4848534951. The cubic root of 251332982 is about 631.0781756045.

The spelling of 251332982 in words is "two hundred fifty-one million, three hundred thirty-two thousand, nine hundred eighty-two".