42285497 has 2 divisors, whose sum is σ = 42285498. Its totient is φ = 42285496.

The previous prime is 42285493. The next prime is 42285521. The reversal of 42285497 is 79458224.

42285497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 346921 = 6476^2 + 589^2 .

It is a cyclic number.

It is not a de Polignac number, because 42285497 - 2² = 42285493 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42285491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21142748 + 21142749.

It is an arithmetic number, because the mean of its divisors is an integer number (21142749).

Almost surely, 2^42285497 is an apocalyptic number.

It is an amenable number.

42285497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42285497 is an equidigital number, since it uses as much as digits as its factorization.

42285497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 42285497 is about 6502.7299651762. The cubic root of 42285497 is about 348.3885018018.

The spelling of 42285497 in words is "forty-two million, two hundred eighty-five thousand, four hundred ninety-seven".