25140036 has 48 divisors (see below), whose sum is σ = 60850944. Its totient is φ = 8072736.

The previous prime is 25140007. The next prime is 25140043. The reversal of 25140036 is 63004152.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25139994 and 25140021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42535 + ... + 43121.

It is an arithmetic number, because the mean of its divisors is an integer number (1267728).

Almost surely, 2^25140036 is an apocalyptic number.

It is an amenable number.

25140036 is an abundant number, since it is smaller than the sum of its proper divisors (35710908).

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

25140036 is a wasteful number, since it uses less digits than its factorization.

25140036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 25140036 is about 5013.9840446495. The cubic root of 25140036 is about 292.9467145972.

Adding to 25140036 its reverse (63004152), we get a palindrome (88144188).

The spelling of 25140036 in words is "twenty-five million, one hundred forty thousand, thirty-six".