669525107 has 2 divisors, whose sum is σ = 669525108. Its totient is φ = 669525106.

The previous prime is 669525089. The next prime is 669525119. The reversal of 669525107 is 701525966.

669525107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 669525107 - 2⁸ = 669524851 is a prime.

It is a super-2 number, since 2×669525107² = 896527737806722898, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (669525167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334762553 + 334762554.

It is an arithmetic number, because the mean of its divisors is an integer number (334762554).

Almost surely, 2^669525107 is an apocalyptic number.

669525107 is a deficient number, since it is larger than the sum of its proper divisors (1).

669525107 is an equidigital number, since it uses as much as digits as its factorization.

669525107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 669525107 is about 25875.1832264044. The cubic root of 669525107 is about 874.8272233553.

The spelling of 669525107 in words is "six hundred sixty-nine million, five hundred twenty-five thousand, one hundred seven".