51112177 has 2 divisors, whose sum is σ = 51112178. Its totient is φ = 51112176.

The previous prime is 51112169. The next prime is 51112189. The reversal of 51112177 is 77121115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50637456 + 474721 = 7116^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 51112177 - 2³ = 51112169 is a prime.

It is a super-2 number, since 2×51112177² = 5224909275358658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51112277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25556088 + 25556089.

It is an arithmetic number, because the mean of its divisors is an integer number (25556089).

Almost surely, 2^51112177 is an apocalyptic number.

It is an amenable number.

51112177 is a deficient number, since it is larger than the sum of its proper divisors (1).

51112177 is an equidigital number, since it uses as much as digits as its factorization.

51112177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 490, while the sum is 25.

The square root of 51112177 is about 7149.2780754423. The cubic root of 51112177 is about 371.1146735893.

The spelling of 51112177 in words is "fifty-one million, one hundred twelve thousand, one hundred seventy-seven".