42788559 has 8 divisors (see below), whose sum is σ = 62237952. Its totient is φ = 25932440.

The previous prime is 42788531. The next prime is 42788561. The reversal of 42788559 is 95588724.

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 42788559 - 2⁵ = 42788527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42788519) 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, 648279 + ... + 648344.

It is an arithmetic number, because the mean of its divisors is an integer number (7779744).

Almost surely, 2^42788559 is an apocalyptic number.

42788559 is a deficient number, since it is larger than the sum of its proper divisors (19449393).

42788559 is a wasteful number, since it uses less digits than its factorization.

42788559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296637.

The product of its digits is 806400, while the sum is 48.

The square root of 42788559 is about 6541.2964311366. The cubic root of 42788559 is about 349.7646281446.

The spelling of 42788559 in words is "forty-two million, seven hundred eighty-eight thousand, five hundred fifty-nine".