42535155 has 32 divisors (see below), whose sum is σ = 73624320. Its totient is φ = 20845440.

The previous prime is 42535153. The next prime is 42535169. The reversal of 42535155 is 55153524.

It is a happy number.

It is not a de Polignac number, because 42535155 - 2¹ = 42535153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42535153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64216 + ... + 64874.

It is an arithmetic number, because the mean of its divisors is an integer number (2300760).

Almost surely, 2^42535155 is an apocalyptic number.

42535155 is a deficient number, since it is larger than the sum of its proper divisors (31089165).

42535155 is a wasteful number, since it uses less digits than its factorization.

42535155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its digits is 15000, while the sum is 30.

The square root of 42535155 is about 6521.8981132796. The cubic root of 42535155 is about 349.0727975716.

Adding to 42535155 its reverse (55153524), we get a palindrome (97688679).

The spelling of 42535155 in words is "forty-two million, five hundred thirty-five thousand, one hundred fifty-five".