25155222200 has 48 divisors (see below), whose sum is σ = 58497662160. Its totient is φ = 10060064000.

The previous prime is 25155222193. The next prime is 25155222203. The reversal of 25155222200 is 222255152.

It is a self number, because there is not a number n which added to its sum of digits gives 25155222200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25155222203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348940 + ... + 1367460.

It is an arithmetic number, because the mean of its divisors is an integer number (1218701295).

Almost surely, 2^25155222200 is an apocalyptic number.

25155222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25155222200 is an abundant number, since it is smaller than the sum of its proper divisors (33342439960).

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

25155222200 is a wasteful number, since it uses less digits than its factorization.

25155222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25328 (or 25319 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 25155222200 its reverse (222255152), we get a palindrome (25377477352).

The spelling of 25155222200 in words is "twenty-five billion, one hundred fifty-five million, two hundred twenty-two thousand, two hundred".