525345512400173 has 2 divisors, whose sum is σ = 525345512400174. Its totient is φ = 525345512400172.

The previous prime is 525345512400157. The next prime is 525345512400223. The reversal of 525345512400173 is 371004215543525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403559764907209 + 121785747492964 = 20088797^2 + 11035658^2 .

It is a cyclic number.

It is not a de Polignac number, because 525345512400173 - 2⁴ = 525345512400157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525345512400103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262672756200086 + 262672756200087.

It is an arithmetic number, because the mean of its divisors is an integer number (262672756200087).

Almost surely, 2^{525345512400173} is an apocalyptic number.

It is an amenable number.

525345512400173 is a deficient number, since it is larger than the sum of its proper divisors (1).

525345512400173 is an equidigital number, since it uses as much as digits as its factorization.

525345512400173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520000, while the sum is 47.

Adding to 525345512400173 its reverse (371004215543525), we get a palindrome (896349727943698).

The spelling of 525345512400173 in words is "five hundred twenty-five trillion, three hundred forty-five billion, five hundred twelve million, four hundred thousand, one hundred seventy-three".