525213405469 has 2 divisors, whose sum is σ = 525213405470. Its totient is φ = 525213405468.

The previous prime is 525213405467. The next prime is 525213405517. The reversal of 525213405469 is 964504312525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482383033444 + 42830372025 = 694538^2 + 206955^2 .

It is a cyclic number.

It is not a de Polignac number, because 525213405469 - 2¹ = 525213405467 is a prime.

It is a super-2 number, since 2×525213405469² (a number of 24 digits) contains 22 as substring.

Together with 525213405467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525213405463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262606702734 + 262606702735.

It is an arithmetic number, because the mean of its divisors is an integer number (262606702735).

Almost surely, 2^525213405469 is an apocalyptic number.

It is an amenable number.

525213405469 is a deficient number, since it is larger than the sum of its proper divisors (1).

525213405469 is an equidigital number, since it uses as much as digits as its factorization.

525213405469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 525213405469 in words is "five hundred twenty-five billion, two hundred thirteen million, four hundred five thousand, four hundred sixty-nine".