42254417 has 2 divisors, whose sum is σ = 42254418. Its totient is φ = 42254416.

The previous prime is 42254389. The next prime is 42254437. The reversal of 42254417 is 71445224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30958096 + 11296321 = 5564^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 42254417 - 2⁶ = 42254353 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42254417.

It is not a weakly prime, because it can be changed into another prime (42254437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21127208 + 21127209.

It is an arithmetic number, because the mean of its divisors is an integer number (21127209).

Almost surely, 2^42254417 is an apocalyptic number.

It is an amenable number.

42254417 is a deficient number, since it is larger than the sum of its proper divisors (1).

42254417 is an equidigital number, since it uses as much as digits as its factorization.

42254417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 29.

The square root of 42254417 is about 6500.3397603510. The cubic root of 42254417 is about 348.3031252595.

The spelling of 42254417 in words is "forty-two million, two hundred fifty-four thousand, four hundred seventeen".