42519359 has 4 divisors (see below), whose sum is σ = 44757240. Its totient is φ = 40281480.

The previous prime is 42519343. The next prime is 42519371. The reversal of 42519359 is 95391524.

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 42519359 - 2⁴ = 42519343 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 (42519319) 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, 1118912 + ... + 1118949.

It is an arithmetic number, because the mean of its divisors is an integer number (11189310).

Almost surely, 2^42519359 is an apocalyptic number.

42519359 is a deficient number, since it is larger than the sum of its proper divisors (2237881).

42519359 is a wasteful number, since it uses less digits than its factorization.

42519359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237880.

The product of its digits is 48600, while the sum is 38.

The square root of 42519359 is about 6520.6870036830. The cubic root of 42519359 is about 349.0295812672.

The spelling of 42519359 in words is "forty-two million, five hundred nineteen thousand, three hundred fifty-nine".