6531225451 has 2 divisors, whose sum is σ = 6531225452. Its totient is φ = 6531225450.

The previous prime is 6531225431. The next prime is 6531225479. The reversal of 6531225451 is 1545221356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6531225451 - 2⁵ = 6531225419 is a prime.

It is not a weakly prime, because it can be changed into another prime (6531225431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3265612725 + 3265612726.

It is an arithmetic number, because the mean of its divisors is an integer number (3265612726).

Almost surely, 2^6531225451 is an apocalyptic number.

6531225451 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531225451 is an equidigital number, since it uses as much as digits as its factorization.

6531225451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 34.

The square root of 6531225451 is about 80815.9974943080. The cubic root of 6531225451 is about 1869.2392504513.

The spelling of 6531225451 in words is "six billion, five hundred thirty-one million, two hundred twenty-five thousand, four hundred fifty-one".