25364784 has 20 divisors (see below), whose sum is σ = 65525816. Its totient is φ = 8454912.

The previous prime is 25364783. The next prime is 25364809. The reversal of 25364784 is 48746352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25364783) 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, 264169 + ... + 264264.

Almost surely, 2^25364784 is an apocalyptic number.

25364784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25364784 is an abundant number, since it is smaller than the sum of its proper divisors (40161032).

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

25364784 is a wasteful number, since it uses less digits than its factorization.

25364784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528444 (or 528438 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 25364784 is about 5036.3462946863. The cubic root of 25364784 is about 293.8170920238.

The spelling of 25364784 in words is "twenty-five million, three hundred sixty-four thousand, seven hundred eighty-four".