2528231 has 2 divisors, whose sum is σ = 2528232. Its totient is φ = 2528230.

The previous prime is 2528221. The next prime is 2528233. The reversal of 2528231 is 1328252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2528231 - 2⁶ = 2528167 is a prime.

It is a super-2 number, since 2×2528231² = 12783903978722, which contains 22 as substring.

Together with 2528233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2528197 and 2528206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264115 + 1264116.

It is an arithmetic number, because the mean of its divisors is an integer number (1264116).

2^2528231 is an apocalyptic number.

2528231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528231 is an equidigital number, since it uses as much as digits as its factorization.

2528231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 2528231 is about 1590.0411944349. The cubic root of 2528231 is about 136.2298413068.

The spelling of 2528231 in words is "two million, five hundred twenty-eight thousand, two hundred thirty-one".