42156533 has 8 divisors (see below), whose sum is σ = 42873600. Its totient is φ = 41444208.

The previous prime is 42156523. The next prime is 42156553. The reversal of 42156533 is 33565124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42156533 - 2¹⁸ = 41894389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42156496 and 42156505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42156523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19763 + ... + 21791.

It is an arithmetic number, because the mean of its divisors is an integer number (5359200).

Almost surely, 2^42156533 is an apocalyptic number.

It is an amenable number.

42156533 is a deficient number, since it is larger than the sum of its proper divisors (717067).

42156533 is a wasteful number, since it uses less digits than its factorization.

42156533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371.

The product of its digits is 10800, while the sum is 29.

The square root of 42156533 is about 6492.8062499970. The cubic root of 42156533 is about 348.0339647344.

The spelling of 42156533 in words is "forty-two million, one hundred fifty-six thousand, five hundred thirty-three".