2051353251 has 12 divisors (see below), whose sum is σ = 3065240880. Its totient is φ = 1320411120.

The previous prime is 2051353219. The next prime is 2051353267. The reversal of 2051353251 is 1523531502.

It is a happy number.

2051353251 is a `hidden beast` number, since 205 + 135 + 325 + 1 = 666.

It is not a de Polignac number, because 2051353251 - 2⁵ = 2051353219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051353151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3929535 + ... + 3930056.

It is an arithmetic number, because the mean of its divisors is an integer number (255436740).

Almost surely, 2^2051353251 is an apocalyptic number.

2051353251 is a deficient number, since it is larger than the sum of its proper divisors (1013887629).

2051353251 is a wasteful number, since it uses less digits than its factorization.

2051353251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7859626 (or 7859623 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 2051353251 is about 45291.8673825666. The cubic root of 2051353251 is about 1270.6135566346.

Adding to 2051353251 its reverse (1523531502), we get a palindrome (3574884753).

The spelling of 2051353251 in words is "two billion, fifty-one million, three hundred fifty-three thousand, two hundred fifty-one".