42559655 has 4 divisors (see below), whose sum is σ = 51071592. Its totient is φ = 34047720.

The previous prime is 42559651. The next prime is 42559663. The reversal of 42559655 is 55695524.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42559655 - 2² = 42559651 is a prime.

It is a super-2 number, since 2×42559655² = 3622648467438050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42559651) 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, 4255961 + ... + 4255970.

It is an arithmetic number, because the mean of its divisors is an integer number (12767898).

Almost surely, 2^42559655 is an apocalyptic number.

42559655 is a deficient number, since it is larger than the sum of its proper divisors (8511937).

42559655 is an equidigital number, since it uses as much as digits as its factorization.

42559655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511936.

The product of its digits is 270000, while the sum is 41.

The square root of 42559655 is about 6523.7761304324. The cubic root of 42559655 is about 349.1398060030.

The spelling of 42559655 in words is "forty-two million, five hundred fifty-nine thousand, six hundred fifty-five".