51065151 has 4 divisors (see below), whose sum is σ = 68086872. Its totient is φ = 34043432.

The previous prime is 51065137. The next prime is 51065173. The reversal of 51065151 is 15156015.

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

It is a cyclic number.

It is not a de Polignac number, because 51065151 - 2⁶ = 51065087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51065111) 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, 8510856 + ... + 8510861.

It is an arithmetic number, because the mean of its divisors is an integer number (17021718).

Almost surely, 2^51065151 is an apocalyptic number.

51065151 is a deficient number, since it is larger than the sum of its proper divisors (17021721).

51065151 is a wasteful number, since it uses less digits than its factorization.

51065151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17021720.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 51065151 is about 7145.9884550704. The cubic root of 51065151 is about 371.0008233962. Note that the first 3 decimals are identical.

The spelling of 51065151 in words is "fifty-one million, sixty-five thousand, one hundred fifty-one".