51011163 has 12 divisors (see below), whose sum is σ = 84209008. Its totient is φ = 29149200.

The previous prime is 51011141. The next prime is 51011167. The reversal of 51011163 is 36111015.

It is not a de Polignac number, because 51011163 - 2⁵ = 51011131 is a prime.

It is a super-2 number, since 2×51011163² = 5204277501225138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51011167) 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, 404788 + ... + 404913.

Almost surely, 2^51011163 is an apocalyptic number.

51011163 is a deficient number, since it is larger than the sum of its proper divisors (33197845).

51011163 is a wasteful number, since it uses less digits than its factorization.

51011163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809714 (or 809711 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 51011163 is about 7142.2099521087. The cubic root of 51011163 is about 370.8700319472.

Adding to 51011163 its reverse (36111015), we get a palindrome (87122178).

The spelling of 51011163 in words is "fifty-one million, eleven thousand, one hundred sixty-three".