6366402253 has 2 divisors, whose sum is σ = 6366402254. Its totient is φ = 6366402252.

The previous prime is 6366402191. The next prime is 6366402271. The reversal of 6366402253 is 3522046636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4486052484 + 1880349769 = 66978^2 + 43363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6366402253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6366402283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3183201126 + 3183201127.

It is an arithmetic number, because the mean of its divisors is an integer number (3183201127).

Almost surely, 2^6366402253 is an apocalyptic number.

It is an amenable number.

6366402253 is a deficient number, since it is larger than the sum of its proper divisors (1).

6366402253 is an equidigital number, since it uses as much as digits as its factorization.

6366402253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 6366402253 is about 79789.7377674598. The cubic root of 6366402253 is about 1853.3809373034.

Adding to 6366402253 its reverse (3522046636), we get a palindrome (9888448889).

The spelling of 6366402253 in words is "six billion, three hundred sixty-six million, four hundred two thousand, two hundred fifty-three".