42585537 has 16 divisors (see below), whose sum is σ = 59164160. Its totient is φ = 27216000.

The previous prime is 42585533. The next prime is 42585547. The reversal of 42585537 is 73558524.

It is not a de Polignac number, because 42585537 - 2² = 42585533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42585495 and 42585504.

It is not an unprimeable number, because it can be changed into a prime (42585533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8037 + ... + 12237.

It is an arithmetic number, because the mean of its divisors is an integer number (3697760).

Almost surely, 2^42585537 is an apocalyptic number.

It is an amenable number.

42585537 is a deficient number, since it is larger than the sum of its proper divisors (16578623).

42585537 is a wasteful number, since it uses less digits than its factorization.

42585537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344.

The product of its digits is 168000, while the sum is 39.

The square root of 42585537 is about 6525.7594960280. The cubic root of 42585537 is about 349.2105663298.

The spelling of 42585537 in words is "forty-two million, five hundred eighty-five thousand, five hundred thirty-seven".