525435045869 has 2 divisors, whose sum is σ = 525435045870. Its totient is φ = 525435045868.

The previous prime is 525435045827. The next prime is 525435045893. The reversal of 525435045869 is 968540534525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280174369225 + 245260676644 = 529315^2 + 495238^2 .

It is a cyclic number.

It is not a de Polignac number, because 525435045869 - 2¹⁶ = 525434980333 is a prime.

It is a super-2 number, since 2×525435045869² (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 (525435045899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262717522934 + 262717522935.

It is an arithmetic number, because the mean of its divisors is an integer number (262717522935).

Almost surely, 2^525435045869 is an apocalyptic number.

It is an amenable number.

525435045869 is a deficient number, since it is larger than the sum of its proper divisors (1).

525435045869 is an equidigital number, since it uses as much as digits as its factorization.

525435045869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920000, while the sum is 56.

The spelling of 525435045869 in words is "five hundred twenty-five billion, four hundred thirty-five million, forty-five thousand, eight hundred sixty-nine".