6415404253 has 2 divisors, whose sum is σ = 6415404254. Its totient is φ = 6415404252.

The previous prime is 6415404217. The next prime is 6415404263. The reversal of 6415404253 is 3524045146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6382891449 + 32512804 = 79893^2 + 5702^2 .

It is a cyclic number.

It is not a de Polignac number, because 6415404253 - 2⁹ = 6415403741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6415404263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207702126 + 3207702127.

It is an arithmetic number, because the mean of its divisors is an integer number (3207702127).

Almost surely, 2^6415404253 is an apocalyptic number.

It is an amenable number.

6415404253 is a deficient number, since it is larger than the sum of its proper divisors (1).

6415404253 is an equidigital number, since it uses as much as digits as its factorization.

6415404253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 6415404253 is about 80096.2187184888. The cubic root of 6415404253 is about 1858.1239276188.

Adding to 6415404253 its reverse (3524045146), we get a palindrome (9939449399).

The spelling of 6415404253 in words is "six billion, four hundred fifteen million, four hundred four thousand, two hundred fifty-three".