25828464 has 20 divisors (see below), whose sum is σ = 66723656. Its totient is φ = 8609472.

The previous prime is 25828463. The next prime is 25828477. The reversal of 25828464 is 46482852.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25828463) 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, 268999 + ... + 269094.

Almost surely, 2^25828464 is an apocalyptic number.

25828464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25828464 is an abundant number, since it is smaller than the sum of its proper divisors (40895192).

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

25828464 is a wasteful number, since it uses less digits than its factorization.

25828464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538104 (or 538098 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 25828464 is about 5082.1711895606. The cubic root of 25828464 is about 295.5966627288.

The spelling of 25828464 in words is "twenty-five million, eight hundred twenty-eight thousand, four hundred sixty-four".