23425425 has 18 divisors (see below), whose sum is σ = 41957942. Its totient is φ = 12493440.

The previous prime is 23425421. The next prime is 23425427. The reversal of 23425425 is 52452432.

It is a happy number.

23425425 is a `hidden beast` number, since 234 + 2 + 5 + 425 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 154449 + 23270976 = 393^2 + 4824^2 .

It is not a de Polignac number, because 23425425 - 2² = 23425421 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 (23425421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51832 + ... + 52281.

Almost surely, 2^23425425 is an apocalyptic number.

23425425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23425425 is a deficient number, since it is larger than the sum of its proper divisors (18532517).

23425425 is a wasteful number, since it uses less digits than its factorization.

23425425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104129 (or 104121 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 23425425 is about 4839.9819214538. The cubic root of 23425425 is about 286.1294057977.

Adding to 23425425 its reverse (52452432), we get a palindrome (75877857).

The spelling of 23425425 in words is "twenty-three million, four hundred twenty-five thousand, four hundred twenty-five".