42417511 has 4 divisors (see below), whose sum is σ = 42434224. Its totient is φ = 42400800.

The previous prime is 42417491. The next prime is 42417523. The reversal of 42417511 is 11571424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42417511 - 2⁷ = 42417383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42417611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3675 + ... + 9916.

It is an arithmetic number, because the mean of its divisors is an integer number (10608556).

Almost surely, 2^42417511 is an apocalyptic number.

42417511 is a deficient number, since it is larger than the sum of its proper divisors (16713).

42417511 is a wasteful number, since it uses less digits than its factorization.

42417511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712.

The product of its digits is 1120, while the sum is 25.

The square root of 42417511 is about 6512.8727148625. The cubic root of 42417511 is about 348.7506778334.

Adding to 42417511 its reverse (11571424), we get a palindrome (53988935).

The spelling of 42417511 in words is "forty-two million, four hundred seventeen thousand, five hundred eleven".