51105277 has 2 divisors, whose sum is σ = 51105278. Its totient is φ = 51105276.

The previous prime is 51105239. The next prime is 51105283. The reversal of 51105277 is 77250115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37222201 + 13883076 = 6101^2 + 3726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51105277 is a prime.

It is a super-2 number, since 2×51105277² = 5223498674493458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51100277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552638 + 25552639.

It is an arithmetic number, because the mean of its divisors is an integer number (25552639).

Almost surely, 2^51105277 is an apocalyptic number.

It is an amenable number.

51105277 is a deficient number, since it is larger than the sum of its proper divisors (1).

51105277 is an equidigital number, since it uses as much as digits as its factorization.

51105277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 51105277 is about 7148.7954929484. The cubic root of 51105277 is about 371.0979730257.

The spelling of 51105277 in words is "fifty-one million, one hundred five thousand, two hundred seventy-seven".