525403348399 has 2 divisors, whose sum is σ = 525403348400. Its totient is φ = 525403348398.

The previous prime is 525403348391. The next prime is 525403348417. The reversal of 525403348399 is 993843304525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525403348399 - 2³ = 525403348391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525403348391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262701674199 + 262701674200.

It is an arithmetic number, because the mean of its divisors is an integer number (262701674200).

Almost surely, 2^525403348399 is an apocalyptic number.

525403348399 is a deficient number, since it is larger than the sum of its proper divisors (1).

525403348399 is an equidigital number, since it uses as much as digits as its factorization.

525403348399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 55.

The spelling of 525403348399 in words is "five hundred twenty-five billion, four hundred three million, three hundred forty-eight thousand, three hundred ninety-nine".