42050111 has 4 divisors (see below), whose sum is σ = 42083592. Its totient is φ = 42016632.

The previous prime is 42050089. The next prime is 42050119. The reversal of 42050111 is 11105024.

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 42050111 - 2¹⁴ = 42033727 is a prime.

It is a super-2 number, since 2×42050111² = 3536423670224642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42050119) 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, 14780 + ... + 17393.

It is an arithmetic number, because the mean of its divisors is an integer number (10520898).

Almost surely, 2^42050111 is an apocalyptic number.

42050111 is a deficient number, since it is larger than the sum of its proper divisors (33481).

42050111 is a wasteful number, since it uses less digits than its factorization.

42050111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33480.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 42050111 is about 6484.6056934867. The cubic root of 42050111 is about 347.7408533313.

Adding to 42050111 its reverse (11105024), we get a palindrome (53155135).

The spelling of 42050111 in words is "forty-two million, fifty thousand, one hundred eleven".