42111055 has 16 divisors (see below), whose sum is σ = 57867840. Its totient is φ = 28818432.

The previous prime is 42111053. The next prime is 42111071. The reversal of 42111055 is 55011124.

It is a cyclic number.

It is not a de Polignac number, because 42111055 - 2¹ = 42111053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42111053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23967 + ... + 25663.

It is an arithmetic number, because the mean of its divisors is an integer number (3616740).

Almost surely, 2^42111055 is an apocalyptic number.

42111055 is a deficient number, since it is larger than the sum of its proper divisors (15756785).

42111055 is a wasteful number, since it uses less digits than its factorization.

42111055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 42111055 is about 6489.3031212912. The cubic root of 42111055 is about 347.9087679770.

Adding to 42111055 its reverse (55011124), we get a palindrome (97122179).

It can be divided in two parts, 421 and 11055, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 42111055 in words is "forty-two million, one hundred eleven thousand, fifty-five".