42517775 has 12 divisors (see below), whose sum is σ = 52805400. Its totient is φ = 33960480.

The previous prime is 42517759. The next prime is 42517789. The reversal of 42517775 is 57771524.

It is not a de Polignac number, because 42517775 - 2⁴ = 42517759 is a prime.

It is a super-2 number, since 2×42517775² = 3615522381901250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 24641 + ... + 26309.

It is an arithmetic number, because the mean of its divisors is an integer number (4400450).

Almost surely, 2^42517775 is an apocalyptic number.

42517775 is a deficient number, since it is larger than the sum of its proper divisors (10287625).

42517775 is a wasteful number, since it uses less digits than its factorization.

42517775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698 (or 2693 counting only the distinct ones).

The product of its digits is 68600, while the sum is 38.

The square root of 42517775 is about 6520.5655429571. The cubic root of 42517775 is about 349.0252470084.

The spelling of 42517775 in words is "forty-two million, five hundred seventeen thousand, seven hundred seventy-five".