7992225 has 18 divisors (see below), whose sum is σ = 14315366. Its totient is φ = 4262400.

The previous prime is 7992223. The next prime is 7992239. The reversal of 7992225 is 5222997.

It can be written as a sum of positive squares in 3 ways, for example, as 1520289 + 6471936 = 1233^2 + 2544^2 .

It is not a de Polignac number, because 7992225 - 2¹ = 7992223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7992225.

It is not an unprimeable number, because it can be changed into a prime (7992221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17536 + ... + 17985.

Almost surely, 2^7992225 is an apocalyptic number.

7992225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7992225 is a deficient number, since it is larger than the sum of its proper divisors (6323141).

7992225 is a wasteful number, since it uses less digits than its factorization.

7992225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35537 (or 35529 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 7992225 is about 2827.0523518322. The cubic root of 7992225 is about 199.9351873322.

The spelling of 7992225 in words is "seven million, nine hundred ninety-two thousand, two hundred twenty-five".