6315656251 has 2 divisors, whose sum is σ = 6315656252. Its totient is φ = 6315656250.

The previous prime is 6315656201. The next prime is 6315656317. The reversal of 6315656251 is 1526565136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6315656251 - 2²³ = 6307267643 is a prime.

It is not a weakly prime, because it can be changed into another prime (6315656201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3157828125 + 3157828126.

It is an arithmetic number, because the mean of its divisors is an integer number (3157828126).

Almost surely, 2^6315656251 is an apocalyptic number.

6315656251 is a deficient number, since it is larger than the sum of its proper divisors (1).

6315656251 is an equidigital number, since it uses as much as digits as its factorization.

6315656251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 40.

The square root of 6315656251 is about 79471.1032451419. The cubic root of 6315656251 is about 1848.4434192778.

The spelling of 6315656251 in words is "six billion, three hundred fifteen million, six hundred fifty-six thousand, two hundred fifty-one".