42115533 has 16 divisors (see below), whose sum is σ = 60487680. Its totient is φ = 25979184.

The previous prime is 42115523. The next prime is 42115543. The reversal of 42115533 is 33551124.

It is an interprime number because it is at equal distance from previous prime (42115523) and next prime (42115543).

It is not a de Polignac number, because 42115533 - 2⁴ = 42115517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42115523) 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 15 ways as a sum of consecutive naturals, for example, 6141 + ... + 11042.

It is an arithmetic number, because the mean of its divisors is an integer number (3780480).

Almost surely, 2^42115533 is an apocalyptic number.

42115533 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42115533 is a deficient number, since it is larger than the sum of its proper divisors (18372147).

42115533 is a wasteful number, since it uses less digits than its factorization.

42115533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17248.

The product of its digits is 1800, while the sum is 24.

The square root of 42115533 is about 6489.6481414634. The cubic root of 42115533 is about 347.9210994993.

Adding to 42115533 its reverse (33551124), we get a palindrome (75666657).

The spelling of 42115533 in words is "forty-two million, one hundred fifteen thousand, five hundred thirty-three".