25156425 has 24 divisors (see below), whose sum is σ = 47534656. Its totient is φ = 11499840.

The previous prime is 25156393. The next prime is 25156429. The reversal of 25156425 is 52465152.

It is not a de Polignac number, because 25156425 - 2⁵ = 25156393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25156392 and 25156401.

It is not an unprimeable number, because it can be changed into a prime (25156429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23434 + ... + 24483.

Almost surely, 2^25156425 is an apocalyptic number.

25156425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25156425 is a deficient number, since it is larger than the sum of its proper divisors (22378231).

25156425 is a wasteful number, since it uses less digits than its factorization.

25156425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47937 (or 47932 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 25156425 is about 5015.6181074719. The cubic root of 25156425 is about 293.0103589080.

The spelling of 25156425 in words is "twenty-five million, one hundred fifty-six thousand, four hundred twenty-five".