42041240555 has 4 divisors (see below), whose sum is σ = 50449488672. Its totient is φ = 33632992440.

The previous prime is 42041240543. The next prime is 42041240617. The reversal of 42041240555 is 55504214024.

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

It is not a de Polignac number, because 42041240555 - 2²⁴ = 42024463339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4204124051 + ... + 4204124060.

It is an arithmetic number, because the mean of its divisors is an integer number (12612372168).

Almost surely, 2^42041240555 is an apocalyptic number.

42041240555 is a deficient number, since it is larger than the sum of its proper divisors (8408248117).

42041240555 is an equidigital number, since it uses as much as digits as its factorization.

42041240555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8408248116.

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 42041240555 its reverse (55504214024), we get a palindrome (97545454579).

The spelling of 42041240555 in words is "forty-two billion, forty-one million, two hundred forty thousand, five hundred fifty-five".