25538425 has 12 divisors (see below), whose sum is σ = 34546896. Its totient is φ = 18573200.

The previous prime is 25538423. The next prime is 25538459. The reversal of 25538425 is 52483552.

It is not a de Polignac number, because 25538425 - 2¹ = 25538423 is a prime.

It is a super-2 number, since 2×25538425² = 1304422302961250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25538423) 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, 46159 + ... + 46708.

It is an arithmetic number, because the mean of its divisors is an integer number (2878908).

Almost surely, 2^25538425 is an apocalyptic number.

25538425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25538425 is a deficient number, since it is larger than the sum of its proper divisors (9008471).

25538425 is a wasteful number, since it uses less digits than its factorization.

25538425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92888 (or 92883 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 25538425 is about 5053.5556789255. Note that the first 3 decimals coincide. The cubic root of 25538425 is about 294.4860341026.

The spelling of 25538425 in words is "twenty-five million, five hundred thirty-eight thousand, four hundred twenty-five".