25655542 has 16 divisors (see below), whose sum is σ = 42239232. Its totient is φ = 11590120.

The previous prime is 25655537. The next prime is 25655543. The reversal of 25655542 is 24555652.

It is a junction number, because it is equal to n+sod(n) for n = 25655498 and 25655507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25655543) 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, 183 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (2639952).

Almost surely, 2^25655542 is an apocalyptic number.

25655542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25655542 is a deficient number, since it is larger than the sum of its proper divisors (16583690).

25655542 is a wasteful number, since it uses less digits than its factorization.

25655542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7163.

The product of its digits is 60000, while the sum is 34.

The square root of 25655542 is about 5065.1300082031. The cubic root of 25655542 is about 294.9355101776.

The spelling of 25655542 in words is "twenty-five million, six hundred fifty-five thousand, five hundred forty-two".