42115535 has 16 divisors (see below), whose sum is σ = 63009792. Its totient is φ = 26253600.

The previous prime is 42115523. The next prime is 42115543. The reversal of 42115535 is 53551124.

It is not a de Polignac number, because 42115535 - 2¹⁰ = 42114511 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 54311 + ... + 55080.

It is an arithmetic number, because the mean of its divisors is an integer number (3938112).

Almost surely, 2^42115535 is an apocalyptic number.

42115535 is a deficient number, since it is larger than the sum of its proper divisors (20894257).

42115535 is a wasteful number, since it uses less digits than its factorization.

42115535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109414.

The product of its digits is 3000, while the sum is 26.

The square root of 42115535 is about 6489.6482955550. The cubic root of 42115535 is about 347.9211050067.

Adding to 42115535 its reverse (53551124), we get a palindrome (95666659).

The spelling of 42115535 in words is "forty-two million, one hundred fifteen thousand, five hundred thirty-five".