2525121200 has 120 divisors (see below), whose sum is σ = 7002691680. Its totient is φ = 857088000.

The previous prime is 2525121187. The next prime is 2525121211. The reversal of 2525121200 is 21215252.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 278336 + ... + 287264.

It is an arithmetic number, because the mean of its divisors is an integer number (58355764).

Almost surely, 2^2525121200 is an apocalyptic number.

2525121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3501345840).

2525121200 is an abundant number, since it is smaller than the sum of its proper divisors (4477570480).

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

2525121200 is a wasteful number, since it uses less digits than its factorization.

2525121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055 (or 9044 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2525121200 is about 50250.5840762075. The cubic root of 2525121200 is about 1361.7396279213.

Adding to 2525121200 its reverse (21215252), we get a palindrome (2546336452).

The spelling of 2525121200 in words is "two billion, five hundred twenty-five million, one hundred twenty-one thousand, two hundred".