42011125555 has 32 divisors (see below), whose sum is σ = 57859596288. Its totient is φ = 28685664000.

The previous prime is 42011125547. The next prime is 42011125589. The reversal of 42011125555 is 55552111024.

42011125555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42011125555 - 2³ = 42011125547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19602814 + ... + 19604956.

It is an arithmetic number, because the mean of its divisors is an integer number (1808112384).

Almost surely, 2^42011125555 is an apocalyptic number.

42011125555 is a deficient number, since it is larger than the sum of its proper divisors (15848470733).

42011125555 is a wasteful number, since it uses less digits than its factorization.

42011125555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267.

The product of its (nonzero) digits is 10000, while the sum is 31.

Adding to 42011125555 its reverse (55552111024), we get a palindrome (97563236579).

The spelling of 42011125555 in words is "forty-two billion, eleven million, one hundred twenty-five thousand, five hundred fifty-five".