2051251200 has 396 divisors, whose sum is σ = 7622454840. Its totient is φ = 526417920.

The previous prime is 2051251151. The next prime is 2051251207. The reversal of 2051251200 is 21521502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051251207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6681447 + ... + 6681753.

Almost surely, 2^2051251200 is an apocalyptic number.

2051251200 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 2051251200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3811227420).

2051251200 is an abundant number, since it is smaller than the sum of its proper divisors (5571203640).

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

2051251200 is a wasteful number, since it uses less digits than its factorization.

2051251200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 346 counting only the distinct ones).

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

The square root of 2051251200 is about 45290.7407755713. The cubic root of 2051251200 is about 1270.5924860666.

Adding to 2051251200 its reverse (21521502), we get a palindrome (2072772702).

The spelling of 2051251200 in words is "two billion, fifty-one million, two hundred fifty-one thousand, two hundred".