42245123555 has 4 divisors (see below), whose sum is σ = 50694148272. Its totient is φ = 33796098840.

The previous prime is 42245123533. The next prime is 42245123567. The reversal of 42245123555 is 55532154224.

42245123555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42245123555 - 2⁸ = 42245123299 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, 4224512351 + ... + 4224512360.

It is an arithmetic number, because the mean of its divisors is an integer number (12673537068).

Almost surely, 2^42245123555 is an apocalyptic number.

42245123555 is a deficient number, since it is larger than the sum of its proper divisors (8449024717).

42245123555 is an equidigital number, since it uses as much as digits as its factorization.

42245123555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449024716.

The product of its digits is 240000, while the sum is 38.

Adding to 42245123555 its reverse (55532154224), we get a palindrome (97777277779).

The spelling of 42245123555 in words is "forty-two billion, two hundred forty-five million, one hundred twenty-three thousand, five hundred fifty-five".