251250442 has 8 divisors (see below), whose sum is σ = 376956576. Its totient is φ = 125598252.

The previous prime is 251250437. The next prime is 251250479. The reversal of 251250442 is 244052152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1483 + ... + 22465.

It is an arithmetic number, because the mean of its divisors is an integer number (47119572).

Almost surely, 2^251250442 is an apocalyptic number.

251250442 is a deficient number, since it is larger than the sum of its proper divisors (125706134).

251250442 is a wasteful number, since it uses less digits than its factorization.

251250442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26972.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 251250442 is about 15850.8814265958. The cubic root of 251250442 is about 631.0090841341.

The spelling of 251250442 in words is "two hundred fifty-one million, two hundred fifty thousand, four hundred forty-two".