42033155 has 4 divisors (see below), whose sum is σ = 50439792. Its totient is φ = 33626520.

The previous prime is 42033143. The next prime is 42033161. The reversal of 42033155 is 55133024.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42033155 - 2⁶ = 42033091 is a prime.

It is a super-2 number, since 2×42033155² = 3533572238508050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42033155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4203311 + ... + 4203320.

It is an arithmetic number, because the mean of its divisors is an integer number (12609948).

Almost surely, 2^42033155 is an apocalyptic number.

42033155 is a deficient number, since it is larger than the sum of its proper divisors (8406637).

42033155 is an equidigital number, since it uses as much as digits as its factorization.

42033155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8406636.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 42033155 is about 6483.2981575738. The cubic root of 42033155 is about 347.6941068307.

Adding to 42033155 its reverse (55133024), we get a palindrome (97166179).

The spelling of 42033155 in words is "forty-two million, thirty-three thousand, one hundred fifty-five".