522520016399 has 2 divisors, whose sum is σ = 522520016400. Its totient is φ = 522520016398.

The previous prime is 522520016393. The next prime is 522520016407. The reversal of 522520016399 is 993610025225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 522520016399 - 2⁸ = 522520016143 is a prime.

It is a super-2 number, since 2×522520016399² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (522520016393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261260008199 + 261260008200.

It is an arithmetic number, because the mean of its divisors is an integer number (261260008200).

Almost surely, 2^522520016399 is an apocalyptic number.

522520016399 is a deficient number, since it is larger than the sum of its proper divisors (1).

522520016399 is an equidigital number, since it uses as much as digits as its factorization.

522520016399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 522520016399 in words is "five hundred twenty-two billion, five hundred twenty million, sixteen thousand, three hundred ninety-nine".