25333220 has 24 divisors (see below), whose sum is σ = 58036608. Its totient is φ = 9212000.

The previous prime is 25333219. The next prime is 25333229. The reversal of 25333220 is 2233352.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25333192 and 25333201.

It is not an unprimeable number, because it can be changed into a prime (25333229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57356 + ... + 57795.

It is an arithmetic number, because the mean of its divisors is an integer number (2418192).

Almost surely, 2^25333220 is an apocalyptic number.

25333220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25333220 is an abundant number, since it is smaller than the sum of its proper divisors (32703388).

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

25333220 is a wasteful number, since it uses less digits than its factorization.

25333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115171 (or 115169 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 25333220 is about 5033.2116983095. The cubic root of 25333220 is about 293.6951658626.

Adding to 25333220 its reverse (2233352), we get a palindrome (27566572).

It can be divided in two parts, 253332 and 20, that added together give a palindrome (253352).

The spelling of 25333220 in words is "twenty-five million, three hundred thirty-three thousand, two hundred twenty".