6531251 has 2 divisors, whose sum is σ = 6531252. Its totient is φ = 6531250.

The previous prime is 6531233. The next prime is 6531253. The reversal of 6531251 is 1521356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6531251 - 2²² = 2336947 is a prime.

It is a Sophie Germain prime.

Together with 6531253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6531253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3265625 + 3265626.

It is an arithmetic number, because the mean of its divisors is an integer number (3265626).

Almost surely, 2^6531251 is an apocalyptic number.

6531251 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531251 is an equidigital number, since it uses as much as digits as its factorization.

6531251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 6531251 is about 2555.6312331790. The cubic root of 6531251 is about 186.9241687826.

The spelling of 6531251 in words is "six million, five hundred thirty-one thousand, two hundred fifty-one".