25540711 has 12 divisors (see below), whose sum is σ = 29877120. Its totient is φ = 21769440.

The previous prime is 25540709. The next prime is 25540717. The reversal of 25540711 is 11704552.

It is not a de Polignac number, because 25540711 - 2¹ = 25540709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25540717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7995 + ... + 10723.

It is an arithmetic number, because the mean of its divisors is an integer number (2489760).

Almost surely, 2^25540711 is an apocalyptic number.

25540711 is a deficient number, since it is larger than the sum of its proper divisors (4336409).

25540711 is a wasteful number, since it uses less digits than its factorization.

25540711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934 (or 2927 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 25540711 is about 5053.7818512476. The cubic root of 25540711 is about 294.4948205357.

The spelling of 25540711 in words is "twenty-five million, five hundred forty thousand, seven hundred eleven".