2525540221200 has 120 divisors (see below), whose sum is σ = 8108832786208. Its totient is φ = 671921879040.

The previous prime is 2525540221187. The next prime is 2525540221301. The reversal of 2525540221200 is 21220455252.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1910674 + ... + 2949873.

Almost surely, 2^{2525540221200} is an apocalyptic number.

2525540221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2525540221200 is an abundant number, since it is smaller than the sum of its proper divisors (5583292565008).

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

2525540221200 is a wasteful number, since it uses less digits than its factorization.

2525540221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861001 (or 4860990 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 2525540221200 its reverse (21220455252), we get a palindrome (2546760676452).

The spelling of 2525540221200 in words is "two trillion, five hundred twenty-five billion, five hundred forty million, two hundred twenty-one thousand, two hundred".