25238745 has 48 divisors (see below), whose sum is σ = 52640640. Its totient is φ = 10927872.

The previous prime is 25238737. The next prime is 25238749. The reversal of 25238745 is 54783252.

It is not a de Polignac number, because 25238745 - 2³ = 25238737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25238749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3877 + ... + 8093.

It is an arithmetic number, because the mean of its divisors is an integer number (1096680).

Almost surely, 2^25238745 is an apocalyptic number.

It is an amenable number.

25238745 is an abundant number, since it is smaller than the sum of its proper divisors (27401895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25238745 is a wasteful number, since it uses less digits than its factorization.

25238745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254 (or 4251 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25238745 is about 5023.8177713767. The cubic root of 25238745 is about 293.3296192999.

The spelling of 25238745 in words is "twenty-five million, two hundred thirty-eight thousand, seven hundred forty-five".