51126777301 has 2 divisors, whose sum is σ = 51126777302. Its totient is φ = 51126777300.

The previous prime is 51126777293. The next prime is 51126777371. The reversal of 51126777301 is 10377762115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30742362225 + 20384415076 = 175335^2 + 142774^2 .

It is a cyclic number.

It is not a de Polignac number, because 51126777301 - 2³ = 51126777293 is a prime.

It is a super-2 number, since 2×51126777301² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51126777371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25563388650 + 25563388651.

It is an arithmetic number, because the mean of its divisors is an integer number (25563388651).

Almost surely, 2^51126777301 is an apocalyptic number.

It is an amenable number.

51126777301 is a deficient number, since it is larger than the sum of its proper divisors (1).

51126777301 is an equidigital number, since it uses as much as digits as its factorization.

51126777301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 40.

The spelling of 51126777301 in words is "fifty-one billion, one hundred twenty-six million, seven hundred seventy-seven thousand, three hundred one".