25133740 has 12 divisors (see below), whose sum is σ = 52780896. Its totient is φ = 10053488.

The previous prime is 25133737. The next prime is 25133747. The reversal of 25133740 is 4733152.

It is not an unprimeable number, because it can be changed into a prime (25133747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628324 + ... + 628363.

It is an arithmetic number, because the mean of its divisors is an integer number (4398408).

Almost surely, 2^25133740 is an apocalyptic number.

25133740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25133740 is an abundant number, since it is smaller than the sum of its proper divisors (27647156).

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

25133740 is a wasteful number, since it uses less digits than its factorization.

25133740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256696 (or 1256694 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 25133740 is about 5013.3561612955. The cubic root of 25133740 is about 292.9222576380.

Adding to 25133740 its reverse (4733152), we get a palindrome (29866892).

The spelling of 25133740 in words is "twenty-five million, one hundred thirty-three thousand, seven hundred forty".