42321583 has 4 divisors (see below), whose sum is σ = 42387048. Its totient is φ = 42256120.

The previous prime is 42321581. The next prime is 42321611. The reversal of 42321583 is 38512324.

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

It is a cyclic number.

It is not a de Polignac number, because 42321583 - 2¹ = 42321581 is a prime.

It is a super-2 number, since 2×42321583² = 3582232775251778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321581) 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, 31753 + ... + 33058.

It is an arithmetic number, because the mean of its divisors is an integer number (10596762).

Almost surely, 2^42321583 is an apocalyptic number.

42321583 is a deficient number, since it is larger than the sum of its proper divisors (65465).

42321583 is an equidigital number, since it uses as much as digits as its factorization.

42321583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65464.

The product of its digits is 5760, while the sum is 28.

The square root of 42321583 is about 6505.5040542605. The cubic root of 42321583 is about 348.4875773227.

The spelling of 42321583 in words is "forty-two million, three hundred twenty-one thousand, five hundred eighty-three".