255051251 has 24 divisors (see below), whose sum is σ = 317769984. Its totient is φ = 200435040.

The previous prime is 255051233. The next prime is 255051253. The reversal of 255051251 is 152150552.

It is not a de Polignac number, because 255051251 - 2¹⁰ = 255050227 is a prime.

It is a super-2 number, since 2×255051251² = 130102281273330002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255051251.

It is not an unprimeable number, because it can be changed into a prime (255051253) 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, 196916 + ... + 198206.

It is an arithmetic number, because the mean of its divisors is an integer number (13240416).

Almost surely, 2^255051251 is an apocalyptic number.

255051251 is a deficient number, since it is larger than the sum of its proper divisors (62718733).

255051251 is a wasteful number, since it uses less digits than its factorization.

255051251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 255051251 is about 15970.3240731051. The cubic root of 255051251 is about 634.1750512591.

The spelling of 255051251 in words is "two hundred fifty-five million, fifty-one thousand, two hundred fifty-one".