25765432 has 64 divisors (see below), whose sum is σ = 60848640. Its totient is φ = 9936000.

The previous prime is 25765393. The next prime is 25765459. The reversal of 25765432 is 23456752.

It is a super-2 number, since 2×25765432² = 1327714972293248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a pancake number, because a pancake can be divided into 25765432 parts by 7178 straight cuts.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92878 + ... + 93154.

It is an arithmetic number, because the mean of its divisors is an integer number (950760).

Almost surely, 2^25765432 is an apocalyptic number.

25765432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25765432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30424320).

25765432 is an abundant number, since it is smaller than the sum of its proper divisors (35083208).

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

25765432 is a wasteful number, since it uses less digits than its factorization.

25765432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 448 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 25765432 is about 5075.9661149381. The cubic root of 25765432 is about 295.3560079995.

It can be divided in two parts, 2576 and 5432, that added together give a palindrome (8008).

The spelling of 25765432 in words is "twenty-five million, seven hundred sixty-five thousand, four hundred thirty-two".