51122177 has 2 divisors, whose sum is σ = 51122178. Its totient is φ = 51122176.

The previous prime is 51122171. The next prime is 51122191. The reversal of 51122177 is 77122115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 6713281 = 6664^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 51122177 - 2¹⁶ = 51056641 is a prime.

It is a super-2 number, since 2×51122177² = 5226953962438658, which contains 22 as substring.

It is equal to p_3064364 and since 51122177 and 3064364 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51122171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25561088 + 25561089.

It is an arithmetic number, because the mean of its divisors is an integer number (25561089).

Almost surely, 2^51122177 is an apocalyptic number.

It is an amenable number.

51122177 is a deficient number, since it is larger than the sum of its proper divisors (1).

51122177 is an equidigital number, since it uses as much as digits as its factorization.

51122177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 980, while the sum is 26.

The square root of 51122177 is about 7149.9774125517. The cubic root of 51122177 is about 371.1388746372.

The spelling of 51122177 in words is "fifty-one million, one hundred twenty-two thousand, one hundred seventy-seven".