251252230 has 64 divisors (see below), whose sum is σ = 493516800. Its totient is φ = 91808640.

The previous prime is 251252191. The next prime is 251252233. The reversal of 251252230 is 32252152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251252233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 926995 + ... + 927265.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200).

Almost surely, 2^251252230 is an apocalyptic number.

251252230 is a deficient number, since it is larger than the sum of its proper divisors (242264570).

251252230 is a wasteful number, since it uses less digits than its factorization.

251252230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 251252230 is about 15850.9378271445. The cubic root of 251252230 is about 631.0105809694.

The spelling of 251252230 in words is "two hundred fifty-one million, two hundred fifty-two thousand, two hundred thirty".