42535321 has 4 divisors (see below), whose sum is σ = 42595200. Its totient is φ = 42475444.

The previous prime is 42535313. The next prime is 42535331. The reversal of 42535321 is 12353524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42535321 - 2³ = 42535313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42535331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28861 + ... + 30298.

It is an arithmetic number, because the mean of its divisors is an integer number (10648800).

Almost surely, 2^42535321 is an apocalyptic number.

It is an amenable number.

42535321 is a deficient number, since it is larger than the sum of its proper divisors (59879).

42535321 is an equidigital number, since it uses as much as digits as its factorization.

42535321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59878.

The product of its digits is 3600, while the sum is 25.

The square root of 42535321 is about 6521.9108396236. The cubic root of 42535321 is about 349.0732516745.

Adding to 42535321 its reverse (12353524), we get a palindrome (54888845).

The spelling of 42535321 in words is "forty-two million, five hundred thirty-five thousand, three hundred twenty-one".