7185425 has 12 divisors (see below), whose sum is σ = 9595740. Its totient is φ = 5305920.

The previous prime is 7185421. The next prime is 7185427. The reversal of 7185425 is 5245817.

It can be written as a sum of positive squares in 6 ways, for example, as 1982464 + 5202961 = 1408^2 + 2281^2 .

It is not a de Polignac number, because 7185425 - 2² = 7185421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7185391 and 7185400.

It is not an unprimeable number, because it can be changed into a prime (7185421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10730 + ... + 11379.

It is an arithmetic number, because the mean of its divisors is an integer number (799645).

Almost surely, 2^7185425 is an apocalyptic number.

It is an amenable number.

7185425 is a deficient number, since it is larger than the sum of its proper divisors (2410315).

7185425 is a wasteful number, since it uses less digits than its factorization.

7185425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22132 (or 22127 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 7185425 is about 2680.5643062609. The cubic root of 7185425 is about 192.9674925339.

The spelling of 7185425 in words is "seven million, one hundred eighty-five thousand, four hundred twenty-five".