25838664 has 16 divisors (see below), whose sum is σ = 64596720. Its totient is φ = 8612880.

The previous prime is 25838663. The next prime is 25838669. The reversal of 25838664 is 46683852.

It is not an unprimeable number, because it can be changed into a prime (25838663) 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, 538282 + ... + 538329.

It is an arithmetic number, because the mean of its divisors is an integer number (4037295).

Almost surely, 2^25838664 is an apocalyptic number.

25838664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25838664 is an abundant number, since it is smaller than the sum of its proper divisors (38758056).

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

25838664 is a wasteful number, since it uses less digits than its factorization.

25838664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076620 (or 1076616 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 25838664 is about 5083.1745986145. The cubic root of 25838664 is about 295.6355692771.

The spelling of 25838664 in words is "twenty-five million, eight hundred thirty-eight thousand, six hundred sixty-four".