663413453 has 2 divisors, whose sum is σ = 663413454. Its totient is φ = 663413452.

The previous prime is 663413419. The next prime is 663413459. The reversal of 663413453 is 354314366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567725929 + 95687524 = 23827^2 + 9782^2 .

It is a cyclic number.

It is not a de Polignac number, because 663413453 - 2¹⁶ = 663347917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663413459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331706726 + 331706727.

It is an arithmetic number, because the mean of its divisors is an integer number (331706727).

Almost surely, 2^663413453 is an apocalyptic number.

It is an amenable number.

663413453 is a deficient number, since it is larger than the sum of its proper divisors (1).

663413453 is an equidigital number, since it uses as much as digits as its factorization.

663413453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 35.

The square root of 663413453 is about 25756.8137198684. The cubic root of 663413453 is about 872.1571751336.

The spelling of 663413453 in words is "six hundred sixty-three million, four hundred thirteen thousand, four hundred fifty-three".