25392425 has 6 divisors (see below), whose sum is σ = 31486638. Its totient is φ = 20313920.

The previous prime is 25392413. The next prime is 25392427. The reversal of 25392425 is 52429352.

It can be written as a sum of positive squares in 3 ways, for example, as 2534464 + 22857961 = 1592^2 + 4781^2 .

It is not a de Polignac number, because 25392425 - 2¹² = 25388329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25392391 and 25392400.

It is not an unprimeable number, because it can be changed into a prime (25392427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 507824 + ... + 507873.

It is an arithmetic number, because the mean of its divisors is an integer number (5247773).

Almost surely, 2^25392425 is an apocalyptic number.

25392425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25392425 is a deficient number, since it is larger than the sum of its proper divisors (6094213).

25392425 is a wasteful number, since it uses less digits than its factorization.

25392425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015707 (or 1015702 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 25392425 is about 5039.0896995390. The cubic root of 25392425 is about 293.9237812819.

The spelling of 25392425 in words is "twenty-five million, three hundred ninety-two thousand, four hundred twenty-five".