2551201200 has 90 divisors (see below), whose sum is σ = 8853389324. Its totient is φ = 680319360.

The previous prime is 2551201099. The next prime is 2551201201. The reversal of 2551201200 is 21021552.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2551201201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 350734 + ... + 357933.

Almost surely, 2^2551201200 is an apocalyptic number.

2551201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2551201200 is an abundant number, since it is smaller than the sum of its proper divisors (6302188124).

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

2551201200 is a wasteful number, since it uses less digits than its factorization.

2551201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708691 (or 708677 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2551201200 is about 50509.4169437740. The cubic root of 2551201200 is about 1366.4116941221.

Adding to 2551201200 its reverse (21021552), we get a palindrome (2572222752).

The spelling of 2551201200 in words is "two billion, five hundred fifty-one million, two hundred one thousand, two hundred".