42354533 has 4 divisors (see below), whose sum is σ = 45612588. Its totient is φ = 39096480.

The previous prime is 42354491. The next prime is 42354583. The reversal of 42354533 is 33545324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29235649 + 13118884 = 5407^2 + 3622^2 .

It is a cyclic number.

It is not a de Polignac number, because 42354533 - 2¹² = 42350437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42354496 and 42354505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42354583) 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, 1629008 + ... + 1629033.

It is an arithmetic number, because the mean of its divisors is an integer number (11403147).

Almost surely, 2^42354533 is an apocalyptic number.

It is an amenable number.

42354533 is a deficient number, since it is larger than the sum of its proper divisors (3258055).

42354533 is a wasteful number, since it uses less digits than its factorization.

42354533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258054.

The product of its digits is 21600, while the sum is 29.

The square root of 42354533 is about 6508.0360324755. The cubic root of 42354533 is about 348.5779936552.

Adding to 42354533 its reverse (33545324), we get a palindrome (75899857).

The spelling of 42354533 in words is "forty-two million, three hundred fifty-four thousand, five hundred thirty-three".