42253417 has 2 divisors, whose sum is σ = 42253418. Its totient is φ = 42253416.

The previous prime is 42253361. The next prime is 42253441. The reversal of 42253417 is 71435224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33396841 + 8856576 = 5779^2 + 2976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42253417 is a prime.

It is not a weakly prime, because it can be changed into another prime (42253457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21126708 + 21126709.

It is an arithmetic number, because the mean of its divisors is an integer number (21126709).

Almost surely, 2^42253417 is an apocalyptic number.

It is an amenable number.

42253417 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253417 is an equidigital number, since it uses as much as digits as its factorization.

42253417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 42253417 is about 6500.2628408396. The cubic root of 42253417 is about 348.3003775714.

The spelling of 42253417 in words is "forty-two million, two hundred fifty-three thousand, four hundred seventeen".