2051150251 has 4 divisors (see below), whose sum is σ = 2121879600. Its totient is φ = 1980420904.

The previous prime is 2051150239. The next prime is 2051150291. The reversal of 2051150251 is 1520511502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2051150251 - 2⁵ = 2051150219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051150291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35364631 + ... + 35364688.

It is an arithmetic number, because the mean of its divisors is an integer number (530469900).

Almost surely, 2^2051150251 is an apocalyptic number.

2051150251 is a deficient number, since it is larger than the sum of its proper divisors (70729349).

2051150251 is an equidigital number, since it uses as much as digits as its factorization.

2051150251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70729348.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 2051150251 is about 45289.6263066941. The cubic root of 2051150251 is about 1270.5716423421.

Adding to 2051150251 its reverse (1520511502), we get a palindrome (3571661753).

The spelling of 2051150251 in words is "two billion, fifty-one million, one hundred fifty thousand, two hundred fifty-one".