6256531 has 2 divisors, whose sum is σ = 6256532. Its totient is φ = 6256530.

The previous prime is 6256511. The next prime is 6256541. The reversal of 6256531 is 1356526.

6256531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6256531 - 2¹¹ = 6254483 is a prime.

It is a super-2 number, since 2×6256531² = 78288360307922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6256531.

It is not a weakly prime, because it can be changed into another prime (6256501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3128265 + 3128266.

It is an arithmetic number, because the mean of its divisors is an integer number (3128266).

Almost surely, 2^6256531 is an apocalyptic number.

6256531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6256531 is an equidigital number, since it uses as much as digits as its factorization.

6256531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 6256531 is about 2501.3058589465. The cubic root of 6256531 is about 184.2657136890.

The spelling of 6256531 in words is "six million, two hundred fifty-six thousand, five hundred thirty-one".