25478264 has 16 divisors (see below), whose sum is σ = 54596400. Its totient is φ = 10919232.

The previous prime is 25478263. The next prime is 25478281. The reversal of 25478264 is 46287452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25478263) 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, 227429 + ... + 227540.

It is an arithmetic number, because the mean of its divisors is an integer number (3412275).

Almost surely, 2^25478264 is an apocalyptic number.

It is an amenable number.

25478264 is an abundant number, since it is smaller than the sum of its proper divisors (29118136).

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

25478264 is a wasteful number, since it uses less digits than its factorization.

25478264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454982 (or 454978 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 25478264 is about 5047.5998256597. The cubic root of 25478264 is about 294.2546115278.

The spelling of 25478264 in words is "twenty-five million, four hundred seventy-eight thousand, two hundred sixty-four".