25020812 has 6 divisors (see below), whose sum is σ = 43786428. Its totient is φ = 12510404.

The previous prime is 25020811. The next prime is 25020887. The reversal of 25020812 is 21802052.

It is not an unprimeable number, because it can be changed into a prime (25020811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3127598 + ... + 3127605.

It is an arithmetic number, because the mean of its divisors is an integer number (7297738).

Almost surely, 2^25020812 is an apocalyptic number.

It is an amenable number.

25020812 is a deficient number, since it is larger than the sum of its proper divisors (18765616).

25020812 is a wasteful number, since it uses less digits than its factorization.

25020812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6255207 (or 6255205 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 25020812 is about 5002.0807670409. The cubic root of 25020812 is about 292.4828908589.

Adding to 25020812 its reverse (21802052), we get a palindrome (46822864).

The spelling of 25020812 in words is "twenty-five million, twenty thousand, eight hundred twelve".