25533894 has 16 divisors (see below), whose sum is σ = 52715520. Its totient is φ = 8236680.

The previous prime is 25533869. The next prime is 25533899. The reversal of 25533894 is 49833552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25533899) 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 7 ways as a sum of consecutive naturals, for example, 68454 + ... + 68825.

It is an arithmetic number, because the mean of its divisors is an integer number (3294720).

Almost surely, 2^25533894 is an apocalyptic number.

25533894 is an abundant number, since it is smaller than the sum of its proper divisors (27181626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25533894 is a wasteful number, since it uses less digits than its factorization.

25533894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137315.

The product of its digits is 129600, while the sum is 39.

The square root of 25533894 is about 5053.1073608226. The cubic root of 25533894 is about 294.4686172736.

The spelling of 25533894 in words is "twenty-five million, five hundred thirty-three thousand, eight hundred ninety-four".