25540995 has 16 divisors (see below), whose sum is σ = 40978080. Its totient is φ = 13584384.

The previous prime is 25540979. The next prime is 25541027. The reversal of 25540995 is 59904552.

It is not a de Polignac number, because 25540995 - 2⁴ = 25540979 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3811 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (2561130).

Almost surely, 2^25540995 is an apocalyptic number.

25540995 is a deficient number, since it is larger than the sum of its proper divisors (15437085).

25540995 is a wasteful number, since it uses less digits than its factorization.

25540995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694.

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 25540995 is about 5053.8099489395. The cubic root of 25540995 is about 294.4959120770.

The spelling of 25540995 in words is "twenty-five million, five hundred forty thousand, nine hundred ninety-five".