525426533491 has 2 divisors, whose sum is σ = 525426533492. Its totient is φ = 525426533490.

The previous prime is 525426533441. The next prime is 525426533503. The reversal of 525426533491 is 194335624525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525426533491 - 2⁹ = 525426532979 is a prime.

It is not a weakly prime, because it can be changed into another prime (525426533441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262713266745 + 262713266746.

It is an arithmetic number, because the mean of its divisors is an integer number (262713266746).

Almost surely, 2^525426533491 is an apocalyptic number.

525426533491 is a deficient number, since it is larger than the sum of its proper divisors (1).

525426533491 is an equidigital number, since it uses as much as digits as its factorization.

525426533491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888000, while the sum is 49.

The spelling of 525426533491 in words is "five hundred twenty-five billion, four hundred twenty-six million, five hundred thirty-three thousand, four hundred ninety-one".