51052151 has 4 divisors (see below), whose sum is σ = 52812600. Its totient is φ = 49291704.

The previous prime is 51052147. The next prime is 51052163. The reversal of 51052151 is 15125015.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15125015 = 5 ⋅3025003.

It is a cyclic number.

It is not a de Polignac number, because 51052151 - 2² = 51052147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51052451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880181 + ... + 880238.

It is an arithmetic number, because the mean of its divisors is an integer number (13203150).

Almost surely, 2^51052151 is an apocalyptic number.

51052151 is a deficient number, since it is larger than the sum of its proper divisors (1760449).

51052151 is a wasteful number, since it uses less digits than its factorization.

51052151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760448.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 51052151 is about 7145.0787959266. The cubic root of 51052151 is about 370.9693379968.

Adding to 51052151 its reverse (15125015), we get a palindrome (66177166).

The spelling of 51052151 in words is "fifty-one million, fifty-two thousand, one hundred fifty-one".