42534529 has 2 divisors, whose sum is σ = 42534530. Its totient is φ = 42534528.

The previous prime is 42534491. The next prime is 42534553. The reversal of 42534529 is 92543524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21603904 + 20930625 = 4648^2 + 4575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42534529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42534494 and 42534503.

It is not a weakly prime, because it can be changed into another prime (42534599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21267264 + 21267265.

It is an arithmetic number, because the mean of its divisors is an integer number (21267265).

Almost surely, 2^42534529 is an apocalyptic number.

It is an amenable number.

42534529 is a deficient number, since it is larger than the sum of its proper divisors (1).

42534529 is an equidigital number, since it uses as much as digits as its factorization.

42534529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 42534529 is about 6521.8501209396. The cubic root of 42534529 is about 349.0710851007.

The spelling of 42534529 in words is "forty-two million, five hundred thirty-four thousand, five hundred twenty-nine".