7442725 has 12 divisors (see below), whose sum is σ = 9263296. Its totient is φ = 5932080.

The previous prime is 7442681. The next prime is 7442749. The reversal of 7442725 is 5272447.

It is not a de Polignac number, because 7442725 - 2⁹ = 7442213 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11254 + ... + 11896.

Almost surely, 2^7442725 is an apocalyptic number.

It is an amenable number.

7442725 is a deficient number, since it is larger than the sum of its proper divisors (1820571).

7442725 is a wasteful number, since it uses less digits than its factorization.

7442725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1111 counting only the distinct ones).

The product of its digits is 15680, while the sum is 31.

The square root of 7442725 is about 2728.1358104024. The cubic root of 7442725 is about 195.2438326076.

The spelling of 7442725 in words is "seven million, four hundred forty-two thousand, seven hundred twenty-five".