251242796 has 36 divisors (see below), whose sum is σ = 541551528. Its totient is φ = 101340288.

The previous prime is 251242781. The next prime is 251242799. The reversal of 251242796 is 697242152.

It is not an unprimeable number, because it can be changed into a prime (251242799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34370 + ... + 41033.

It is an arithmetic number, because the mean of its divisors is an integer number (15043098).

Almost surely, 2^251242796 is an apocalyptic number.

It is an amenable number.

251242796 is an abundant number, since it is smaller than the sum of its proper divisors (290308732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251242796 is a wasteful number, since it uses less digits than its factorization.

251242796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75438 (or 75429 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 251242796 is about 15850.6402394351. The cubic root of 251242796 is about 631.0026831578.

The spelling of 251242796 in words is "two hundred fifty-one million, two hundred forty-two thousand, seven hundred ninety-six".