522081377 has 2 divisors, whose sum is σ = 522081378. Its totient is φ = 522081376.

The previous prime is 522081349. The next prime is 522081401. The reversal of 522081377 is 773180225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453008656 + 69072721 = 21284^2 + 8311^2 .

It is a cyclic number.

It is not a de Polignac number, because 522081377 - 2⁸ = 522081121 is a prime.

It is a super-2 number, since 2×522081377² = 545137928420432258, which contains 22 as substring.

It is a Chen prime.

It is equal to p_27456209 and since 522081377 and 27456209 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 (522081317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261040688 + 261040689.

It is an arithmetic number, because the mean of its divisors is an integer number (261040689).

Almost surely, 2^522081377 is an apocalyptic number.

It is an amenable number.

522081377 is a deficient number, since it is larger than the sum of its proper divisors (1).

522081377 is an equidigital number, since it uses as much as digits as its factorization.

522081377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 522081377 is about 22849.1001354539. The cubic root of 522081377 is about 805.2166267560.

The spelling of 522081377 in words is "five hundred twenty-two million, eighty-one thousand, three hundred seventy-seven".