42055523 has 4 divisors (see below), whose sum is σ = 43884048. Its totient is φ = 40227000.

The previous prime is 42055511. The next prime is 42055543. The reversal of 42055523 is 32555024.

42055523 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 42055523 - 2¹⁰ = 42054499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42055492 and 42055501.

It is not an unprimeable number, because it can be changed into a prime (42055543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914228 + ... + 914273.

It is an arithmetic number, because the mean of its divisors is an integer number (10971012).

Almost surely, 2^42055523 is an apocalyptic number.

42055523 is a deficient number, since it is larger than the sum of its proper divisors (1828525).

42055523 is a wasteful number, since it uses less digits than its factorization.

42055523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828524.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 42055523 is about 6485.0229760580. The cubic root of 42055523 is about 347.7557711894.

The spelling of 42055523 in words is "forty-two million, fifty-five thousand, five hundred twenty-three".