25433878 has 8 divisors (see below), whose sum is σ = 38235672. Its totient is φ = 12688656.

The previous prime is 25433869. The next prime is 25433879. The reversal of 25433878 is 87833452.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25433878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25433879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13000 + ... + 14827.

It is an arithmetic number, because the mean of its divisors is an integer number (4779459).

Almost surely, 2^25433878 is an apocalyptic number.

25433878 is a deficient number, since it is larger than the sum of its proper divisors (12801794).

25433878 is a wasteful number, since it uses less digits than its factorization.

25433878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28286.

The product of its digits is 161280, while the sum is 40.

The square root of 25433878 is about 5043.2011659263. The cubic root of 25433878 is about 294.0836373334.

The spelling of 25433878 in words is "twenty-five million, four hundred thirty-three thousand, eight hundred seventy-eight".