6253655491 has 2 divisors, whose sum is σ = 6253655492. Its totient is φ = 6253655490.

The previous prime is 6253655483. The next prime is 6253655519. The reversal of 6253655491 is 1945563526.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6253655491 - 2³ = 6253655483 is a prime.

It is a super-2 number, since 2×6253655491² = 78216414000228902162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6253655791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126827745 + 3126827746.

It is an arithmetic number, because the mean of its divisors is an integer number (3126827746).

Almost surely, 2^6253655491 is an apocalyptic number.

6253655491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6253655491 is an equidigital number, since it uses as much as digits as its factorization.

6253655491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972000, while the sum is 46.

The square root of 6253655491 is about 79080.0574797464. The cubic root of 6253655491 is about 1842.3747978357.

The spelling of 6253655491 in words is "six billion, two hundred fifty-three million, six hundred fifty-five thousand, four hundred ninety-one".