7290025 has 18 divisors (see below), whose sum is σ = 9612170. Its totient is φ = 5483520.

The previous prime is 7290001. The next prime is 7290037. The reversal of 7290025 is 5200927.

It can be written as a sum of positive squares in 9 ways, for example, as 802816 + 6487209 = 896^2 + 2547^2 .

It is not a de Polignac number, because 7290025 - 2⁵ = 7289993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6721 + ... + 7729.

Almost surely, 2^7290025 is an apocalyptic number.

It is an amenable number.

7290025 is a deficient number, since it is larger than the sum of its proper divisors (2322145).

7290025 is a wasteful number, since it uses less digits than its factorization.

7290025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 7290025 is about 2700.0046296257. The cubic root of 7290025 is about 193.8993437523.

Subtracting from 7290025 its sum of digits (25), we obtain a square (7290000 = 2700²).

It can be divided in two parts, 72900 and 25, that multiplied together give a square (1822500 = 1350²).

The spelling of 7290025 in words is "seven million, two hundred ninety thousand, twenty-five".