297390025 has 9 divisors (see below), whose sum is σ = 368870581. Its totient is φ = 237843040.

The previous prime is 297390017. The next prime is 297390047. The reversal of 297390025 is 520093792.

The square root of 297390025 is 17245.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 169338169 + 128051856 = 13013^2 + 11316^2 .

It is not a de Polignac number, because 297390025 - 2³ = 297390017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 84501 + ... + 87949.

Almost surely, 2^297390025 is an apocalyptic number.

297390025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

297390025 is the 17245-th square number.

297390025 is the 8623-rd centered octagonal number.

It is an amenable number.

297390025 is a deficient number, since it is larger than the sum of its proper divisors (71480556).

297390025 is an frugal number, since it uses more digits than its factorization.

297390025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908 (or 3454 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The cubic root of 297390025 is about 667.4859559296.

The spelling of 297390025 in words is "two hundred ninety-seven million, three hundred ninety thousand, twenty-five".