42530699 has 2 divisors, whose sum is σ = 42530700. Its totient is φ = 42530698.

The previous prime is 42530693. The next prime is 42530701. The reversal of 42530699 is 99603524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42530699 is a prime.

Together with 42530701, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42530693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21265349 + 21265350.

It is an arithmetic number, because the mean of its divisors is an integer number (21265350).

Almost surely, 2^42530699 is an apocalyptic number.

42530699 is a deficient number, since it is larger than the sum of its proper divisors (1).

42530699 is an equidigital number, since it uses as much as digits as its factorization.

42530699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 42530699 is about 6521.5564859932. The cubic root of 42530699 is about 349.0606074769.

The spelling of 42530699 in words is "forty-two million, five hundred thirty thousand, six hundred ninety-nine".