525320520231061 has 2 divisors, whose sum is σ = 525320520231062. Its totient is φ = 525320520231060.

The previous prime is 525320520231019. The next prime is 525320520231079. The reversal of 525320520231061 is 160132025023525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525155201550225 + 165318680836 = 22916265^2 + 406594^2 .

It is a cyclic number.

It is not a de Polignac number, because 525320520231061 - 2³³ = 525311930296469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525320520231061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525320520231961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262660260115530 + 262660260115531.

It is an arithmetic number, because the mean of its divisors is an integer number (262660260115531).

Almost surely, 2^{525320520231061} is an apocalyptic number.

It is an amenable number.

525320520231061 is a deficient number, since it is larger than the sum of its proper divisors (1).

525320520231061 is an equidigital number, since it uses as much as digits as its factorization.

525320520231061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 525320520231061 its reverse (160132025023525), we get a palindrome (685452545254586).

The spelling of 525320520231061 in words is "five hundred twenty-five trillion, three hundred twenty billion, five hundred twenty million, two hundred thirty-one thousand, sixty-one".