51000127 has 2 divisors, whose sum is σ = 51000128. Its totient is φ = 51000126.

The previous prime is 51000113. The next prime is 51000133. The reversal of 51000127 is 72100015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51000127 - 2⁷ = 50999999 is a prime.

It is a super-2 number, since 2×51000127² = 5202025908032258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51000127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51000137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500063 + 25500064.

It is an arithmetic number, because the mean of its divisors is an integer number (25500064).

Almost surely, 2^51000127 is an apocalyptic number.

51000127 is a deficient number, since it is larger than the sum of its proper divisors (1).

51000127 is an equidigital number, since it uses as much as digits as its factorization.

51000127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 51000127 is about 7141.4373203158. The cubic root of 51000127 is about 370.8432847503.

The spelling of 51000127 in words is "fifty-one million, one hundred twenty-seven", and thus it is an aban number.