42375617 has 2 divisors, whose sum is σ = 42375618. Its totient is φ = 42375616.

The previous prime is 42375601. The next prime is 42375631. The reversal of 42375617 is 71657324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32364721 + 10010896 = 5689^2 + 3164^2 .

It is a cyclic number.

It is not a de Polignac number, because 42375617 - 2⁴ = 42375601 is a prime.

It is a super-2 number, since 2×42375617² = 3591385832261378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42375647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21187808 + 21187809.

It is an arithmetic number, because the mean of its divisors is an integer number (21187809).

Almost surely, 2^42375617 is an apocalyptic number.

It is an amenable number.

42375617 is a deficient number, since it is larger than the sum of its proper divisors (1).

42375617 is an equidigital number, since it uses as much as digits as its factorization.

42375617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 35.

The square root of 42375617 is about 6509.6556744578. The cubic root of 42375617 is about 348.6358245313.

The spelling of 42375617 in words is "forty-two million, three hundred seventy-five thousand, six hundred seventeen".