297990433225 has 27 divisors (see below), whose sum is σ = 378450246663. Its totient is φ = 232756629840.

The previous prime is 297990433219. The next prime is 297990433259. The reversal of 297990433225 is 522334099792.

The square root of 297990433225 is 545885.

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

It can be written as a sum of positive squares in only one way, i.e., 107276555961 + 190713877264 = 327531^2 + 436708^2 .

It is not a de Polignac number, because 297990433225 - 2²³ = 297982044617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 117364006 + ... + 117366544.

Almost surely, 2^297990433225 is an apocalyptic number.

297990433225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

297990433225 is the 545885-th square number.

297990433225 is the 272943-rd centered octagonal number.

It is an amenable number.

297990433225 is a deficient number, since it is larger than the sum of its proper divisors (80459813438).

297990433225 is an frugal number, since it uses more digits than its factorization.

297990433225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174 (or 2587 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 297990433225 in words is "two hundred ninety-seven billion, nine hundred ninety million, four hundred thirty-three thousand, two hundred twenty-five".