42025069 has 2 divisors, whose sum is σ = 42025070. Its totient is φ = 42025068.

The previous prime is 42025001. The next prime is 42025079. The reversal of 42025069 is 96052024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40475044 + 1550025 = 6362^2 + 1245^2 .

It is a cyclic number.

It is not a de Polignac number, because 42025069 - 2²³ = 33636461 is a prime.

It is a super-2 number, since 2×42025069² = 3532212848909522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42025079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21012534 + 21012535.

It is an arithmetic number, because the mean of its divisors is an integer number (21012535).

Almost surely, 2^42025069 is an apocalyptic number.

It is an amenable number.

42025069 is a deficient number, since it is larger than the sum of its proper divisors (1).

42025069 is an equidigital number, since it uses as much as digits as its factorization.

42025069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42025069 is about 6482.6745252249. The cubic root of 42025069 is about 347.6718098698.

The spelling of 42025069 in words is "forty-two million, twenty-five thousand, sixty-nine".