42062569 has 2 divisors, whose sum is σ = 42062570. Its totient is φ = 42062568.

The previous prime is 42062563. The next prime is 42062591. The reversal of 42062569 is 96526024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31584400 + 10478169 = 5620^2 + 3237^2 .

It is a cyclic number.

It is not a de Polignac number, because 42062569 - 2⁹ = 42062057 is a prime.

It is a super-2 number, since 2×42062569² = 3538519421759522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42062563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21031284 + 21031285.

It is an arithmetic number, because the mean of its divisors is an integer number (21031285).

Almost surely, 2^42062569 is an apocalyptic number.

It is an amenable number.

42062569 is a deficient number, since it is larger than the sum of its proper divisors (1).

42062569 is an equidigital number, since it uses as much as digits as its factorization.

42062569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 42062569 is about 6485.5662050433. The cubic root of 42062569 is about 347.7751911542.

The spelling of 42062569 in words is "forty-two million, sixty-two thousand, five hundred sixty-nine".