297220825 has 12 divisors (see below), whose sum is σ = 402059088. Its totient is φ = 216160400.

The previous prime is 297220823. The next prime is 297220829. The reversal of 297220825 is 528022792.

It is not a de Polignac number, because 297220825 - 2¹ = 297220823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297220823) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 540127 + ... + 540676.

It is an arithmetic number, because the mean of its divisors is an integer number (33504924).

Almost surely, 2^297220825 is an apocalyptic number.

297220825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

297220825 is a deficient number, since it is larger than the sum of its proper divisors (104838263).

297220825 is a wasteful number, since it uses less digits than its factorization.

297220825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080824 (or 1080819 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 297220825 is about 17240.0935322289. The cubic root of 297220825 is about 667.3593432439.

It can be divided in two parts, 297 and 220825, that added together give a palindrome (221122).

The spelling of 297220825 in words is "two hundred ninety-seven million, two hundred twenty thousand, eight hundred twenty-five".