51028011 has 12 divisors (see below), whose sum is σ = 74034792. Its totient is φ = 33867456.

The previous prime is 51028009. The next prime is 51028027. The reversal of 51028011 is 11082015.

It is not a de Polignac number, because 51028011 - 2¹ = 51028009 is a prime.

It is a super-2 number, since 2×51028011² = 5207715813232242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51028031) 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, 10446 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (6169566).

Almost surely, 2^51028011 is an apocalyptic number.

51028011 is a deficient number, since it is larger than the sum of its proper divisors (23006781).

51028011 is a wasteful number, since it uses less digits than its factorization.

51028011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25210 (or 25207 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 51028011 is about 7143.3893216036. The cubic root of 51028011 is about 370.9108578511.

The spelling of 51028011 in words is "fifty-one million, twenty-eight thousand, eleven".