525243302239991 has 2 divisors, whose sum is σ = 525243302239992. Its totient is φ = 525243302239990.

The previous prime is 525243302239973. The next prime is 525243302240003. The reversal of 525243302239991 is 199932203342525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525243302239991 - 2³⁸ = 524968424333047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525243302239991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525243302439991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262621651119995 + 262621651119996.

It is an arithmetic number, because the mean of its divisors is an integer number (262621651119996).

Almost surely, 2^{525243302239991} is an apocalyptic number.

525243302239991 is a deficient number, since it is larger than the sum of its proper divisors (1).

525243302239991 is an equidigital number, since it uses as much as digits as its factorization.

525243302239991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31492800, while the sum is 59.

The spelling of 525243302239991 in words is "five hundred twenty-five trillion, two hundred forty-three billion, three hundred two million, two hundred thirty-nine thousand, nine hundred ninety-one".