251088 has 20 divisors (see below), whose sum is σ = 648768. Its totient is φ = 83680.

The previous prime is 251087. The next prime is 251099. The reversal of 251088 is 880152.

251088 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251081) 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, 2568 + ... + 2663.

2²⁵¹⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

251088 is an abundant number, since it is smaller than the sum of its proper divisors (397680).

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

251088 is a wasteful number, since it uses less digits than its factorization.

251088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242 (or 5236 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 251088 is about 501.0868188248. The cubic root of 251088 is about 63.0873065168.

The spelling of 251088 in words is "two hundred fifty-one thousand, eighty-eight".