42111355 has 16 divisors (see below), whose sum is σ = 59369184. Its totient is φ = 28270080.

The previous prime is 42111347. The next prime is 42111359. The reversal of 42111355 is 55311124.

42111355 = T₁₄₅₀ + T₁₄₅₁ + ... + T₁₄₈₈.

It is a happy number.

It is not a de Polignac number, because 42111355 - 2³ = 42111347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42111359) 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, 28734 + ... + 30163.

It is an arithmetic number, because the mean of its divisors is an integer number (3710574).

Almost surely, 2^42111355 is an apocalyptic number.

42111355 is a deficient number, since it is larger than the sum of its proper divisors (17257829).

42111355 is a wasteful number, since it uses less digits than its factorization.

42111355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58926.

The product of its digits is 600, while the sum is 22.

The square root of 42111355 is about 6489.3262362128. The cubic root of 42111355 is about 347.9095941447.

Adding to 42111355 its reverse (55311124), we get a palindrome (97422479).

The spelling of 42111355 in words is "forty-two million, one hundred eleven thousand, three hundred fifty-five".