42495617 has 2 divisors, whose sum is σ = 42495618. Its totient is φ = 42495616.

The previous prime is 42495587. The next prime is 42495623. The reversal of 42495617 is 71659424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25816561 + 16679056 = 5081^2 + 4084^2 .

It is a cyclic number.

It is not a de Polignac number, because 42495617 - 2⁶ = 42495553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42495667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21247808 + 21247809.

It is an arithmetic number, because the mean of its divisors is an integer number (21247809).

Almost surely, 2^42495617 is an apocalyptic number.

It is an amenable number.

42495617 is a deficient number, since it is larger than the sum of its proper divisors (1).

42495617 is an equidigital number, since it uses as much as digits as its factorization.

42495617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 42495617 is about 6518.8662357806. The cubic root of 42495617 is about 348.9646053491.

The spelling of 42495617 in words is "forty-two million, four hundred ninety-five thousand, six hundred seventeen".