42533617 has 6 divisors (see below), whose sum is σ = 49477938. Its totient is φ = 36457344.

The previous prime is 42533611. The next prime is 42533639. The reversal of 42533617 is 71633524.

It can be written as a sum of positive squares in only one way, i.e., 35569296 + 6964321 = 5964^2 + 2639^2 .

It is not a de Polignac number, because 42533617 - 2⁷ = 42533489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42533611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 433968 + ... + 434065.

It is an arithmetic number, because the mean of its divisors is an integer number (8246323).

Almost surely, 2^42533617 is an apocalyptic number.

It is an amenable number.

42533617 is a deficient number, since it is larger than the sum of its proper divisors (6944321).

42533617 is an equidigital number, since it uses as much as digits as its factorization.

42533617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868047 (or 868040 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 42533617 is about 6521.7802017547. The cubic root of 42533617 is about 349.0685902249.

The spelling of 42533617 in words is "forty-two million, five hundred thirty-three thousand, six hundred seventeen".