42252417 has 6 divisors (see below), whose sum is σ = 61031282. Its totient is φ = 28168272.

The previous prime is 42252341. The next prime is 42252451. The reversal of 42252417 is 71425224.

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 16941456 = 5031^2 + 4116^2 .

It is not a de Polignac number, because 42252417 - 2¹² = 42248321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42252467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2347348 + ... + 2347365.

Almost surely, 2^42252417 is an apocalyptic number.

It is an amenable number.

42252417 is a deficient number, since it is larger than the sum of its proper divisors (18778865).

42252417 is a wasteful number, since it uses less digits than its factorization.

42252417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694719 (or 4694716 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 42252417 is about 6500.1859204180. The cubic root of 42252417 is about 348.2976298400.

The spelling of 42252417 in words is "forty-two million, two hundred fifty-two thousand, four hundred seventeen".