25016940 has 72 divisors (see below), whose sum is σ = 81729648. Its totient is φ = 6157440.

The previous prime is 25016923. The next prime is 25016983. The reversal of 25016940 is 4961052.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3006 + ... + 7685.

It is an arithmetic number, because the mean of its divisors is an integer number (1135134).

Almost surely, 2^25016940 is an apocalyptic number.

25016940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25016940 is an abundant number, since it is smaller than the sum of its proper divisors (56712708).

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

25016940 is a wasteful number, since it uses less digits than its factorization.

25016940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719 (or 10714 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 25016940 is about 5001.6937131336. The cubic root of 25016940 is about 292.4678027238.

Adding to 25016940 its reverse (4961052), we get a palindrome (29977992).

The spelling of 25016940 in words is "twenty-five million, sixteen thousand, nine hundred forty".