25112140 has 24 divisors (see below), whose sum is σ = 52975440. Its totient is φ = 9999168.

The previous prime is 25112137. The next prime is 25112141. The reversal of 25112140 is 4121152.

It is not an unprimeable number, because it can be changed into a prime (25112141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839 + ... + 7321.

It is an arithmetic number, because the mean of its divisors is an integer number (2207310).

Almost surely, 2^25112140 is an apocalyptic number.

25112140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25112140 is an abundant number, since it is smaller than the sum of its proper divisors (27863300).

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

25112140 is a wasteful number, since it uses less digits than its factorization.

25112140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721 (or 5719 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 25112140 is about 5011.2014527456. The cubic root of 25112140 is about 292.8383208775.

Adding to 25112140 its reverse (4121152), we get a palindrome (29233292).

It can be divided in two parts, 25112 and 140, that added together give a palindrome (25252).

The spelling of 25112140 in words is "twenty-five million, one hundred twelve thousand, one hundred forty".