25416425 has 24 divisors (see below), whose sum is σ = 32664576. Its totient is φ = 19607040.

The previous prime is 25416421. The next prime is 25416439. The reversal of 25416425 is 52461452.

It is not a de Polignac number, because 25416425 - 2² = 25416421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25416421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113864 + ... + 114086.

It is an arithmetic number, because the mean of its divisors is an integer number (1361024).

Almost surely, 2^25416425 is an apocalyptic number.

25416425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25416425 is a deficient number, since it is larger than the sum of its proper divisors (7248151).

25416425 is a wasteful number, since it uses less digits than its factorization.

25416425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 372 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 25416425 is about 5041.4705196004. The cubic root of 25416425 is about 294.0163541584.

Adding to 25416425 its reverse (52461452), we get a palindrome (77877877).

The spelling of 25416425 in words is "twenty-five million, four hundred sixteen thousand, four hundred twenty-five".