42372523 has 2 divisors, whose sum is σ = 42372524. Its totient is φ = 42372522.

The previous prime is 42372503. The next prime is 42372529. The reversal of 42372523 is 32527324.

42372523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42372523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42372491 and 42372500.

It is not a weakly prime, because it can be changed into another prime (42372529) 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 as a sum of consecutive naturals, namely, 21186261 + 21186262.

It is an arithmetic number, because the mean of its divisors is an integer number (21186262).

Almost surely, 2^42372523 is an apocalyptic number.

42372523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42372523 is an equidigital number, since it uses as much as digits as its factorization.

42372523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 28.

The square root of 42372523 is about 6509.4180231415. The cubic root of 42372523 is about 348.6273392626.

Adding to 42372523 its reverse (32527324), we get a palindrome (74899847).

The spelling of 42372523 in words is "forty-two million, three hundred seventy-two thousand, five hundred twenty-three".