255651237 has 12 divisors (see below), whose sum is σ = 369577260. Its totient is φ = 170294208.

The previous prime is 255651229. The next prime is 255651257. The reversal of 255651237 is 732156552.

It can be written as a sum of positive squares in 2 ways, for example, as 113230881 + 142420356 = 10641^2 + 11934^2 .

It is not a de Polignac number, because 255651237 - 2³ = 255651229 is a prime.

It is a super-3 number, since 3×255651237³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255651217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583 + ... + 22619.

It is an arithmetic number, because the mean of its divisors is an integer number (30798105).

Almost surely, 2^255651237 is an apocalyptic number.

It is an amenable number.

255651237 is a deficient number, since it is larger than the sum of its proper divisors (113926023).

255651237 is a wasteful number, since it uses less digits than its factorization.

255651237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23332 (or 23329 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 255651237 is about 15989.0974416944. The cubic root of 255651237 is about 634.6719424770.

The spelling of 255651237 in words is "two hundred fifty-five million, six hundred fifty-one thousand, two hundred thirty-seven".