25455542 has 16 divisors (see below), whose sum is σ = 43868832. Its totient is φ = 10851840.

The previous prime is 25455517. The next prime is 25455571. The reversal of 25455542 is 24555452.

It is a junction number, because it is equal to n+sod(n) for n = 25455499 and 25455508.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2009 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (2741802).

Almost surely, 2^25455542 is an apocalyptic number.

25455542 is a deficient number, since it is larger than the sum of its proper divisors (18413290).

25455542 is a wasteful number, since it uses less digits than its factorization.

25455542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9623.

The product of its digits is 40000, while the sum is 32.

The square root of 25455542 is about 5045.3485508932. The cubic root of 25455542 is about 294.1671115598.

The spelling of 25455542 in words is "twenty-five million, four hundred fifty-five thousand, five hundred forty-two".