25564250200 has 24 divisors (see below), whose sum is σ = 59436882180. Its totient is φ = 10225700000.

The previous prime is 25564250149. The next prime is 25564250219. The reversal of 25564250200 is 205246552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63910426 + ... + 63910825.

Almost surely, 2^25564250200 is an apocalyptic number.

25564250200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25564250200 is an abundant number, since it is smaller than the sum of its proper divisors (33872631980).

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

25564250200 is a wasteful number, since it uses less digits than its factorization.

25564250200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127821267 (or 127821258 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 25564250200 its reverse (205246552), we get a palindrome (25769496752).

The spelling of 25564250200 in words is "twenty-five billion, five hundred sixty-four million, two hundred fifty thousand, two hundred".