669258503 has 2 divisors, whose sum is σ = 669258504. Its totient is φ = 669258502.

The previous prime is 669258449. The next prime is 669258517. The reversal of 669258503 is 305852966.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 669258503 - 2²² = 665064199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669258523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334629251 + 334629252.

It is an arithmetic number, because the mean of its divisors is an integer number (334629252).

Almost surely, 2^669258503 is an apocalyptic number.

669258503 is a deficient number, since it is larger than the sum of its proper divisors (1).

669258503 is an equidigital number, since it uses as much as digits as its factorization.

669258503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 669258503 is about 25870.0309818137. The cubic root of 669258503 is about 874.7110895967.

The spelling of 669258503 in words is "six hundred sixty-nine million, two hundred fifty-eight thousand, five hundred three".