51047163 has 24 divisors (see below), whose sum is σ = 76911120. Its totient is φ = 32585280.

The previous prime is 51047147. The next prime is 51047177. The reversal of 51047163 is 36174015.

It is not a de Polignac number, because 51047163 - 2⁴ = 51047147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51047363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33445 + ... + 34937.

It is an arithmetic number, because the mean of its divisors is an integer number (3204630).

Almost surely, 2^51047163 is an apocalyptic number.

51047163 is a deficient number, since it is larger than the sum of its proper divisors (25863957).

51047163 is a wasteful number, since it uses less digits than its factorization.

51047163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 51047163 is about 7144.7297359662. The cubic root of 51047163 is about 370.9572558723.

The spelling of 51047163 in words is "fifty-one million, forty-seven thousand, one hundred sixty-three".