42657583 has 4 divisors (see below), whose sum is σ = 43056360. Its totient is φ = 42258808.

The previous prime is 42657557. The next prime is 42657599. The reversal of 42657583 is 38575624.

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 42657583 - 2¹³ = 42649391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42657523) 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, 199228 + ... + 199441.

It is an arithmetic number, because the mean of its divisors is an integer number (10764090).

Almost surely, 2^42657583 is an apocalyptic number.

42657583 is a deficient number, since it is larger than the sum of its proper divisors (398777).

42657583 is a wasteful number, since it uses less digits than its factorization.

42657583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398776.

The product of its digits is 201600, while the sum is 40.

The square root of 42657583 is about 6531.2772870243. The cubic root of 42657583 is about 349.4073862790.

The spelling of 42657583 in words is "forty-two million, six hundred fifty-seven thousand, five hundred eighty-three".