2555231 has 16 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 2051808.

The previous prime is 2555227. The next prime is 2555233. The reversal of 2555231 is 1325552.

It is a cyclic number.

It is not a de Polignac number, because 2555231 - 2² = 2555227 is a prime.

It is a super-2 number, since 2×2555231² = 13058410926722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2555197 and 2555206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9365 + ... + 9633.

It is an arithmetic number, because the mean of its divisors is an integer number (194400).

2^2555231 is an apocalyptic number.

2555231 is a deficient number, since it is larger than the sum of its proper divisors (555169).

2555231 is a wasteful number, since it uses less digits than its factorization.

2555231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358.

The product of its digits is 1500, while the sum is 23.

The square root of 2555231 is about 1598.5089927805. The cubic root of 2555231 is about 136.7130763131.

The spelling of 2555231 in words is "two million, five hundred fifty-five thousand, two hundred thirty-one".