7315425 has 72 divisors (see below), whose sum is σ = 14691768. Its totient is φ = 3456000.

The previous prime is 7315421. The next prime is 7315447. The reversal of 7315425 is 5245137.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 6843456 + 471969 = 2616^2 + 687^2 .

It is not a de Polignac number, because 7315425 - 2² = 7315421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7315421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 119895 + ... + 119955.

Almost surely, 2^7315425 is an apocalyptic number.

7315425 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7315425 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

7315425 is a wasteful number, since it uses less digits than its factorization.

7315425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 123 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 7315425 is about 2704.7042352169. The cubic root of 7315425 is about 194.1242782535.

The spelling of 7315425 in words is "seven million, three hundred fifteen thousand, four hundred twenty-five".