25542838 has 4 divisors (see below), whose sum is σ = 38314260. Its totient is φ = 12771418.

The previous prime is 25542787. The next prime is 25542841. The reversal of 25542838 is 83824552.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 25542797 and 25542806.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6385708 + ... + 6385711.

It is an arithmetic number, because the mean of its divisors is an integer number (9578565).

Almost surely, 2^25542838 is an apocalyptic number.

25542838 is a deficient number, since it is larger than the sum of its proper divisors (12771422).

25542838 is a wasteful number, since it uses less digits than its factorization.

25542838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12771421.

The product of its digits is 76800, while the sum is 37.

The square root of 25542838 is about 5053.9922833340. The cubic root of 25542838 is about 294.5029953681.

The spelling of 25542838 in words is "twenty-five million, five hundred forty-two thousand, eight hundred thirty-eight".