525442543 has 2 divisors, whose sum is σ = 525442544. Its totient is φ = 525442542.

The previous prime is 525442523. The next prime is 525442553. The reversal of 525442543 is 345244525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525442543 is a prime.

It is equal to p_27623725 and since 525442543 and 27623725 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 525442499 and 525442508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525442523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262721271 + 262721272.

It is an arithmetic number, because the mean of its divisors is an integer number (262721272).

Almost surely, 2^525442543 is an apocalyptic number.

525442543 is a deficient number, since it is larger than the sum of its proper divisors (1).

525442543 is an equidigital number, since it uses as much as digits as its factorization.

525442543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96000, while the sum is 34.

The square root of 525442543 is about 22922.5335205339. The cubic root of 525442543 is about 806.9409296867.

The spelling of 525442543 in words is "five hundred twenty-five million, four hundred forty-two thousand, five hundred forty-three".