7925425 has 12 divisors (see below), whose sum is σ = 9990556. Its totient is φ = 6235200.

The previous prime is 7925389. The next prime is 7925453. The reversal of 7925425 is 5245297.

It can be written as a sum of positive squares in 6 ways, for example, as 1595169 + 6330256 = 1263^2 + 2516^2 .

It is not a de Polignac number, because 7925425 - 2⁹ = 7924913 is a prime.

It is a super-2 number, since 2×7925425² = 125624722861250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

7925425 is a lucky 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, 1074 + ... + 4123.

Almost surely, 2^7925425 is an apocalyptic number.

It is an amenable number.

7925425 is a deficient number, since it is larger than the sum of its proper divisors (2065131).

7925425 is a wasteful number, since it uses less digits than its factorization.

7925425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268 (or 5263 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 7925425 is about 2815.2131358034. The cubic root of 7925425 is about 199.3766005512.

The spelling of 7925425 in words is "seven million, nine hundred twenty-five thousand, four hundred twenty-five".