663094525 has 6 divisors (see below), whose sum is σ = 822237242. Its totient is φ = 530475600.

The previous prime is 663094507. The next prime is 663094591. The reversal of 663094525 is 525490366.

663094525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 86806489 + 576288036 = 9317^2 + 24006^2 .

It is not a de Polignac number, because 663094525 - 2⁵ = 663094493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13261866 + ... + 13261915.

Almost surely, 2^663094525 is an apocalyptic number.

It is an amenable number.

663094525 is a deficient number, since it is larger than the sum of its proper divisors (159142717).

663094525 is a wasteful number, since it uses less digits than its factorization.

663094525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26523791 (or 26523786 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 663094525 is about 25750.6218371518. The cubic root of 663094525 is about 872.0173930578.

The spelling of 663094525 in words is "six hundred sixty-three million, ninety-four thousand, five hundred twenty-five".