25905542 has 8 divisors (see below), whose sum is σ = 41847456. Its totient is φ = 11956392.

The previous prime is 25905533. The next prime is 25905547. The reversal of 25905542 is 24550952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25905499 and 25905508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25905547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498158 + ... + 498209.

It is an arithmetic number, because the mean of its divisors is an integer number (5230932).

Almost surely, 2^25905542 is an apocalyptic number.

25905542 is a deficient number, since it is larger than the sum of its proper divisors (15941914).

25905542 is a wasteful number, since it uses less digits than its factorization.

25905542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996382.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 25905542 is about 5089.7487167836. The cubic root of 25905542 is about 295.8904132316.

The spelling of 25905542 in words is "twenty-five million, nine hundred five thousand, five hundred forty-two".