25133340 has 24 divisors (see below), whose sum is σ = 70373520. Its totient is φ = 6702208.

The previous prime is 25133321. The next prime is 25133363. The reversal of 25133340 is 4333152.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209385 + ... + 209504.

It is an arithmetic number, because the mean of its divisors is an integer number (2932230).

Almost surely, 2^25133340 is an apocalyptic number.

25133340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25133340 is an abundant number, since it is smaller than the sum of its proper divisors (45240180).

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

25133340 is a wasteful number, since it uses less digits than its factorization.

25133340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418901 (or 418899 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 25133340 is about 5013.3162677015. The cubic root of 25133340 is about 292.9207036907.

Adding to 25133340 its reverse (4333152), we get a palindrome (29466492).

The spelling of 25133340 in words is "twenty-five million, one hundred thirty-three thousand, three hundred forty".