426526543 has 2 divisors, whose sum is σ = 426526544. Its totient is φ = 426526542.

The previous prime is 426526439. The next prime is 426526561. The reversal of 426526543 is 345625624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426526543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426526943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213263271 + 213263272.

It is an arithmetic number, because the mean of its divisors is an integer number (213263272).

Almost surely, 2^426526543 is an apocalyptic number.

426526543 is a deficient number, since it is larger than the sum of its proper divisors (1).

426526543 is an equidigital number, since it uses as much as digits as its factorization.

426526543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 37.

The square root of 426526543 is about 20652.5190473220. The cubic root of 426526543 is about 752.7464006945.

The spelling of 426526543 in words is "four hundred twenty-six million, five hundred twenty-six thousand, five hundred forty-three".