25008425 has 12 divisors (see below), whose sum is σ = 33396300. Its totient is φ = 18467520.

The previous prime is 25008419. The next prime is 25008439. The reversal of 25008425 is 52480052.

It can be written as a sum of positive squares in 6 ways, for example, as 1466521 + 23541904 = 1211^2 + 4852^2 .

It is not a de Polignac number, because 25008425 - 2⁸ = 25008169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25008394 and 25008403.

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, 38150 + ... + 38799.

It is an arithmetic number, because the mean of its divisors is an integer number (2783025).

Almost surely, 2^25008425 is an apocalyptic number.

25008425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25008425 is a deficient number, since it is larger than the sum of its proper divisors (8387875).

25008425 is a wasteful number, since it uses less digits than its factorization.

25008425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76972 (or 76967 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 25008425 is about 5000.8424290313. The cubic root of 25008425 is about 292.4346165982.

Adding to 25008425 its reverse (52480052), we get a palindrome (77488477).

The spelling of 25008425 in words is "twenty-five million, eight thousand, four hundred twenty-five".