251452230 has 32 divisors (see below), whose sum is σ = 604088064. Its totient is φ = 66986976.

The previous prime is 251452207. The next prime is 251452231. The reversal of 251452230 is 32254152.

It is a self number, because there is not a number n which added to its sum of digits gives 251452230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251452231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31287 + ... + 38493.

It is an arithmetic number, because the mean of its divisors is an integer number (18877752).

Almost surely, 2^251452230 is an apocalyptic number.

251452230 is an abundant number, since it is smaller than the sum of its proper divisors (352635834).

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

251452230 is a wasteful number, since it uses less digits than its factorization.

251452230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 251452230 is about 15857.2453471591. The cubic root of 251452230 is about 631.1779674039.

The spelling of 251452230 in words is "two hundred fifty-one million, four hundred fifty-two thousand, two hundred thirty".