25011040 has 24 divisors (see below), whose sum is σ = 59088960. Its totient is φ = 10004352.

The previous prime is 25011023. The next prime is 25011043. The reversal of 25011040 is 4011052.

It is a self number, because there is not a number n which added to its sum of digits gives 25011040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25011043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 78000 + ... + 78319.

It is an arithmetic number, because the mean of its divisors is an integer number (2462040).

Almost surely, 2^25011040 is an apocalyptic number.

25011040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25011040 is an abundant number, since it is smaller than the sum of its proper divisors (34077920).

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

25011040 is a wasteful number, since it uses less digits than its factorization.

25011040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156334 (or 156326 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 25011040 is about 5001.1038781453. The cubic root of 25011040 is about 292.4448090282. Note that the first 3 decimals are identical.

Adding to 25011040 its reverse (4011052), we get a palindrome (29022092).

The spelling of 25011040 in words is "twenty-five million, eleven thousand, forty".