25332520 has 32 divisors (see below), whose sum is σ = 57594600. Its totient is φ = 10027008.

The previous prime is 25332511. The next prime is 25332539. The reversal of 25332520 is 2523352.

It can be written as a sum of positive squares in 4 ways, for example, as 14002564 + 11329956 = 3742^2 + 3366^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25332491 and 25332500.

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, 616 + ... + 7144.

Almost surely, 2^25332520 is an apocalyptic number.

25332520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25332520 is an abundant number, since it is smaller than the sum of its proper divisors (32262080).

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

25332520 is a wasteful number, since it uses less digits than its factorization.

25332520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6637 (or 6633 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 25332520 is about 5033.1421597249. The cubic root of 25332520 is about 293.6924607385.

Adding to 25332520 its reverse (2523352), we get a palindrome (27855872).

It can be divided in two parts, 25332 and 520, that added together give a palindrome (25852).

The spelling of 25332520 in words is "twenty-five million, three hundred thirty-two thousand, five hundred twenty".