25540853 has 8 divisors (see below), whose sum is σ = 27647928. Its totient is φ = 23454144.

The previous prime is 25540847. The next prime is 25540873. The reversal of 25540853 is 35804552.

It can be written as a sum of positive squares in 4 ways, for example, as 2289169 + 23251684 = 1513^2 + 4822^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25540853 - 2²⁴ = 8763637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25540873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2426 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (3455991).

Almost surely, 2^25540853 is an apocalyptic number.

It is an amenable number.

25540853 is a deficient number, since it is larger than the sum of its proper divisors (2107075).

25540853 is a wasteful number, since it uses less digits than its factorization.

25540853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 25540853 is about 5053.7959001131. The cubic root of 25540853 is about 294.4953663073.

The spelling of 25540853 in words is "twenty-five million, five hundred forty thousand, eight hundred fifty-three".