251232255 has 24 divisors (see below), whose sum is σ = 439547472. Its totient is φ = 132735744.

The previous prime is 251232253. The next prime is 251232263. The reversal of 251232255 is 552232152.

It is not a de Polignac number, because 251232255 - 2¹ = 251232253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251232253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21274 + ... + 30903.

It is an arithmetic number, because the mean of its divisors is an integer number (18314478).

Almost surely, 2^251232255 is an apocalyptic number.

251232255 is a deficient number, since it is larger than the sum of its proper divisors (188315217).

251232255 is a wasteful number, since it uses less digits than its factorization.

251232255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52295 (or 52292 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 251232255 is about 15850.3077257194. The cubic root of 251232255 is about 630.9938583710.

The spelling of 251232255 in words is "two hundred fifty-one million, two hundred thirty-two thousand, two hundred fifty-five".