525904308431 has 2 divisors, whose sum is σ = 525904308432. Its totient is φ = 525904308430.

The previous prime is 525904308403. The next prime is 525904308463. The reversal of 525904308431 is 134803409525.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525904308431 is a prime.

It is a super-2 number, since 2×525904308431² (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 (525904308481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262952154215 + 262952154216.

It is an arithmetic number, because the mean of its divisors is an integer number (262952154216).

Almost surely, 2^525904308431 is an apocalyptic number.

525904308431 is a deficient number, since it is larger than the sum of its proper divisors (1).

525904308431 is an equidigital number, since it uses as much as digits as its factorization.

525904308431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 525904308431 in words is "five hundred twenty-five billion, nine hundred four million, three hundred eight thousand, four hundred thirty-one".