42211529 has 2 divisors, whose sum is σ = 42211530. Its totient is φ = 42211528.

The previous prime is 42211523. The next prime is 42211531. The reversal of 42211529 is 92511224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38688400 + 3523129 = 6220^2 + 1877^2 .

It is a cyclic number.

It is not a de Polignac number, because 42211529 - 2¹⁶ = 42145993 is a prime.

Together with 42211531, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42211498 and 42211507.

It is not a weakly prime, because it can be changed into another prime (42211523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105764 + 21105765.

It is an arithmetic number, because the mean of its divisors is an integer number (21105765).

Almost surely, 2^42211529 is an apocalyptic number.

It is an amenable number.

42211529 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211529 is an equidigital number, since it uses as much as digits as its factorization.

42211529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 42211529 is about 6497.0400183468. The cubic root of 42211529 is about 348.1852434509.

The spelling of 42211529 in words is "forty-two million, two hundred eleven thousand, five hundred twenty-nine".