251362072 has 16 divisors (see below), whose sum is σ = 507558240. Its totient is φ = 116013216.

The previous prime is 251362057. The next prime is 251362073. The reversal of 251362072 is 270263152.

It is a self number, because there is not a number n which added to its sum of digits gives 251362072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251362073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1208368 + ... + 1208575.

It is an arithmetic number, because the mean of its divisors is an integer number (31722390).

Almost surely, 2^251362072 is an apocalyptic number.

It is an amenable number.

251362072 is an abundant number, since it is smaller than the sum of its proper divisors (256196168).

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

251362072 is a wasteful number, since it uses less digits than its factorization.

251362072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416962 (or 2416958 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 251362072 is about 15854.4022908465. The cubic root of 251362072 is about 631.1025222644.

The spelling of 251362072 in words is "two hundred fifty-one million, three hundred sixty-two thousand, seventy-two".