42559855 has 8 divisors (see below), whose sum is σ = 55000512. Its totient is φ = 31428768.

The previous prime is 42559801. The next prime is 42559861. The reversal of 42559855 is 55895524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42559855 is a prime.

It is a super-2 number, since 2×42559855² = 3622682515242050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327319 + ... + 327448.

It is an arithmetic number, because the mean of its divisors is an integer number (6875064).

Almost surely, 2^42559855 is an apocalyptic number.

42559855 is a deficient number, since it is larger than the sum of its proper divisors (12440657).

42559855 is a wasteful number, since it uses less digits than its factorization.

42559855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654785.

The product of its digits is 360000, while the sum is 43.

The square root of 42559855 is about 6523.7914589600. The cubic root of 42559855 is about 349.1403529047.

The spelling of 42559855 in words is "forty-two million, five hundred fifty-nine thousand, eight hundred fifty-five".