25353320 has 16 divisors (see below), whose sum is σ = 57045060. Its totient is φ = 10141312.

The previous prime is 25353299. The next prime is 25353331. The reversal of 25353320 is 2335352.

It can be written as a sum of positive squares in 2 ways, for example, as 22033636 + 3319684 = 4694^2 + 1822^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316877 + ... + 316956.

Almost surely, 2^25353320 is an apocalyptic number.

25353320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25353320 is an abundant number, since it is smaller than the sum of its proper divisors (31691740).

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

25353320 is a wasteful number, since it uses less digits than its factorization.

25353320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633844 (or 633840 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 25353320 is about 5035.2080393962. The cubic root of 25353320 is about 293.7728203186.

Adding to 25353320 its reverse (2335352), we get a palindrome (27688672).

The spelling of 25353320 in words is "twenty-five million, three hundred fifty-three thousand, three hundred twenty".