525775057681 has 2 divisors, whose sum is σ = 525775057682. Its totient is φ = 525775057680.

The previous prime is 525775057651. The next prime is 525775057693. The reversal of 525775057681 is 186750577525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440603888400 + 85171169281 = 663780^2 + 291841^2 .

It is a cyclic number.

It is not a de Polignac number, because 525775057681 - 2²¹ = 525772960529 is a prime.

It is a super-2 number, since 2×525775057681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (525775057631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262887528840 + 262887528841.

It is an arithmetic number, because the mean of its divisors is an integer number (262887528841).

Almost surely, 2^525775057681 is an apocalyptic number.

It is an amenable number.

525775057681 is a deficient number, since it is larger than the sum of its proper divisors (1).

525775057681 is an equidigital number, since it uses as much as digits as its factorization.

525775057681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20580000, while the sum is 58.

The spelling of 525775057681 in words is "five hundred twenty-five billion, seven hundred seventy-five million, fifty-seven thousand, six hundred eighty-one".