42552123 has 4 divisors (see below), whose sum is σ = 56736168. Its totient is φ = 28368080.

The previous prime is 42552121. The next prime is 42552127. The reversal of 42552123 is 32125524.

42552123 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 a cyclic number.

It is not a de Polignac number, because 42552123 - 2¹ = 42552121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42552093 and 42552102.

It is not an unprimeable number, because it can be changed into a prime (42552121) 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, 7092018 + ... + 7092023.

It is an arithmetic number, because the mean of its divisors is an integer number (14184042).

Almost surely, 2^42552123 is an apocalyptic number.

42552123 is a deficient number, since it is larger than the sum of its proper divisors (14184045).

42552123 is a wasteful number, since it uses less digits than its factorization.

42552123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14184044.

The product of its digits is 2400, while the sum is 24.

The square root of 42552123 is about 6523.1988318616. The cubic root of 42552123 is about 349.1192084349.

Adding to 42552123 its reverse (32125524), we get a palindrome (74677647).

The spelling of 42552123 in words is "forty-two million, five hundred fifty-two thousand, one hundred twenty-three".