2551521200 has 60 divisors (see below), whose sum is σ = 6135992688. Its totient is φ = 1019616000.

The previous prime is 2551521199. The next prime is 2551521227. The reversal of 2551521200 is 21251552.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517949 + ... + 522851.

Almost surely, 2^2551521200 is an apocalyptic number.

2551521200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551521200 is an abundant number, since it is smaller than the sum of its proper divisors (3584471488).

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

2551521200 is a wasteful number, since it uses less digits than its factorization.

2551521200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222 (or 6211 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2551521200 is about 50512.5845705800. The cubic root of 2551521200 is about 1366.4688219124.

Adding to 2551521200 its reverse (21251552), we get a palindrome (2572772752).

The spelling of 2551521200 in words is "two billion, five hundred fifty-one million, five hundred twenty-one thousand, two hundred".