25540193 has 8 divisors (see below), whose sum is σ = 29301888. Its totient is φ = 21806784.

The previous prime is 25540181. The next prime is 25540211. The reversal of 25540193 is 39104552.

25540193 is nontrivially palindromic in base 8.

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 25540193 - 2¹² = 25536097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25540133) 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, 5096 + ... + 8777.

It is an arithmetic number, because the mean of its divisors is an integer number (3662736).

Almost surely, 2^25540193 is an apocalyptic number.

It is an amenable number.

25540193 is a deficient number, since it is larger than the sum of its proper divisors (3761695).

25540193 is a wasteful number, since it uses less digits than its factorization.

25540193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14143.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 25540193 is about 5053.7306022383. The cubic root of 25540193 is about 294.4928296051.

The spelling of 25540193 in words is "twenty-five million, five hundred forty thousand, one hundred ninety-three".