2051251201 has 4 divisors (see below), whose sum is σ = 2052328752. Its totient is φ = 2050173652.

The previous prime is 2051251151. The next prime is 2051251207. The reversal of 2051251201 is 1021521502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2051251201 - 2⁷ = 2051251073 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535915 + ... + 539728.

It is an arithmetic number, because the mean of its divisors is an integer number (513082188).

Almost surely, 2^2051251201 is an apocalyptic number.

It is an amenable number.

2051251201 is a deficient number, since it is larger than the sum of its proper divisors (1077551).

2051251201 is a wasteful number, since it uses less digits than its factorization.

2051251201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077550.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 2051251201 is about 45290.7407866111. The cubic root of 2051251201 is about 1270.5924862731.

Adding to 2051251201 its reverse (1021521502), we get a palindrome (3072772703).

The spelling of 2051251201 in words is "two billion, fifty-one million, two hundred fifty-one thousand, two hundred one".