25780832 has 48 divisors (see below), whose sum is σ = 63286272. Its totient is φ = 10043520.

The previous prime is 25780831. The next prime is 25780847. The reversal of 25780832 is 23808752.

It is a happy number.

It is a super-2 number, since 2×25780832² = 1329302597224448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25780792 and 25780801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25780831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768 + ... + 7695.

It is an arithmetic number, because the mean of its divisors is an integer number (1318464).

Almost surely, 2^25780832 is an apocalyptic number.

25780832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25780832 is an abundant number, since it is smaller than the sum of its proper divisors (37505440).

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

25780832 is a wasteful number, since it uses less digits than its factorization.

25780832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10491 (or 10483 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 25780832 is about 5077.4828409360. The cubic root of 25780832 is about 295.4148410465.

The spelling of 25780832 in words is "twenty-five million, seven hundred eighty thousand, eight hundred thirty-two".