25538745 has 16 divisors (see below), whose sum is σ = 40924800. Its totient is φ = 13599744.

The previous prime is 25538741. The next prime is 25538753. The reversal of 25538745 is 54783552.

It is not a de Polignac number, because 25538745 - 2² = 25538741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25538741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17556 + ... + 18954.

It is an arithmetic number, because the mean of its divisors is an integer number (2557800).

Almost surely, 2^25538745 is an apocalyptic number.

It is an amenable number.

25538745 is a deficient number, since it is larger than the sum of its proper divisors (15386055).

25538745 is a wasteful number, since it uses less digits than its factorization.

25538745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624.

The product of its digits is 168000, while the sum is 39.

The square root of 25538745 is about 5053.5873397024. The cubic root of 25538745 is about 294.4872640810.

The spelling of 25538745 in words is "twenty-five million, five hundred thirty-eight thousand, seven hundred forty-five".