25732464 has 40 divisors (see below), whose sum is σ = 68276880. Its totient is φ = 8345088.

The previous prime is 25732439. The next prime is 25732513. The reversal of 25732464 is 46423752.

It is a super-2 number, since 2×25732464² = 1324319407022592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5469 + ... + 9020.

It is an arithmetic number, because the mean of its divisors is an integer number (1706922).

Almost surely, 2^25732464 is an apocalyptic number.

25732464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25732464 is an abundant number, since it is smaller than the sum of its proper divisors (42544416).

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

25732464 is a wasteful number, since it uses less digits than its factorization.

25732464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537 (or 14531 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 25732464 is about 5072.7176148491. The cubic root of 25732464 is about 295.2299805774.

The spelling of 25732464 in words is "twenty-five million, seven hundred thirty-two thousand, four hundred sixty-four".