697507225 has 6 divisors (see below), whose sum is σ = 864908990. Its totient is φ = 558005760.

The previous prime is 697507219. The next prime is 697507243. The reversal of 697507225 is 522705796.

697507225 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 132779529 + 564727696 = 11523^2 + 23764^2 .

It is not a de Polignac number, because 697507225 - 2²⁹ = 160636313 is a prime.

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, 13950120 + ... + 13950169.

Almost surely, 2^697507225 is an apocalyptic number.

It is an amenable number.

697507225 is a deficient number, since it is larger than the sum of its proper divisors (167401765).

697507225 is a wasteful number, since it uses less digits than its factorization.

697507225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27900299 (or 27900294 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 697507225 is about 26410.3620762760. The cubic root of 697507225 is about 886.8487743961.

The spelling of 697507225 in words is "six hundred ninety-seven million, five hundred seven thousand, two hundred twenty-five".