42472523 has 2 divisors, whose sum is σ = 42472524. Its totient is φ = 42472522.

The previous prime is 42472499. The next prime is 42472541. The reversal of 42472523 is 32527424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42472523 - 2⁶ = 42472459 is a prime.

It is not a weakly prime, because it can be changed into another prime (42472553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21236261 + 21236262.

It is an arithmetic number, because the mean of its divisors is an integer number (21236262).

Almost surely, 2^42472523 is an apocalyptic number.

42472523 is a deficient number, since it is larger than the sum of its proper divisors (1).

42472523 is an equidigital number, since it uses as much as digits as its factorization.

42472523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 29.

The square root of 42472523 is about 6517.0946747765. The cubic root of 42472523 is about 348.9013796216.

Adding to 42472523 its reverse (32527424), we get a palindrome (74999947).

The spelling of 42472523 in words is "forty-two million, four hundred seventy-two thousand, five hundred twenty-three".