42617775 has 12 divisors (see below), whose sum is σ = 70461512. Its totient is φ = 22729440.

The previous prime is 42617749. The next prime is 42617789. The reversal of 42617775 is 57771624.

It is not a de Polignac number, because 42617775 - 2¹⁰ = 42616751 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284044 + ... + 284193.

Almost surely, 2^42617775 is an apocalyptic number.

42617775 is a deficient number, since it is larger than the sum of its proper divisors (27843737).

42617775 is a wasteful number, since it uses less digits than its factorization.

42617775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568250 (or 568245 counting only the distinct ones).

The product of its digits is 82320, while the sum is 39.

The square root of 42617775 is about 6528.2290860539. The cubic root of 42617775 is about 349.2986636153.

The spelling of 42617775 in words is "forty-two million, six hundred seventeen thousand, seven hundred seventy-five".