42565387 has 8 divisors (see below), whose sum is σ = 45849600. Its totient is φ = 39400680.

The previous prime is 42565381. The next prime is 42565403. The reversal of 42565387 is 78356524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42565387 - 2¹⁵ = 42532619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42565381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29137 + ... + 30562.

It is an arithmetic number, because the mean of its divisors is an integer number (5731200).

Almost surely, 2^42565387 is an apocalyptic number.

42565387 is a deficient number, since it is larger than the sum of its proper divisors (3284213).

42565387 is a wasteful number, since it uses less digits than its factorization.

42565387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59753.

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

The square root of 42565387 is about 6524.2154317588. The cubic root of 42565387 is about 349.1554795286.

The spelling of 42565387 in words is "forty-two million, five hundred sixty-five thousand, three hundred eighty-seven".