64025900 has 18 divisors (see below), whose sum is σ = 138936420. Its totient is φ = 25610320.

The previous prime is 64025879. The next prime is 64025903. The reversal of 64025900 is 952046.

It is a self number, because there is not a number n which added to its sum of digits gives 64025900.

It is not an unprimeable number, because it can be changed into a prime (64025903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320030 + ... + 320229.

It is an arithmetic number, because the mean of its divisors is an integer number (7718690).

Almost surely, 2^64025900 is an apocalyptic number.

It is an amenable number.

64025900 is an abundant number, since it is smaller than the sum of its proper divisors (74910520).

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

64025900 is a wasteful number, since it uses less digits than its factorization.

64025900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640273 (or 640266 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 64025900 is about 8001.6185862612. The cubic root of 64025900 is about 400.0539510562.

Adding to 64025900 its reverse (952046), we get a palindrome (64977946).

The spelling of 64025900 in words is "sixty-four million, twenty-five thousand, nine hundred".