47418523 has 2 divisors, whose sum is σ = 47418524. Its totient is φ = 47418522.

The previous prime is 47418487. The next prime is 47418563. The reversal of 47418523 is 32581474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47418523 - 2⁹ = 47418011 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (47418563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23709261 + 23709262.

It is an arithmetic number, because the mean of its divisors is an integer number (23709262).

Almost surely, 2^47418523 is an apocalyptic number.

47418523 is a deficient number, since it is larger than the sum of its proper divisors (1).

47418523 is an equidigital number, since it uses as much as digits as its factorization.

47418523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 47418523 is about 6886.1108762494. The cubic root of 47418523 is about 361.9506332567.

Adding to 47418523 its reverse (32581474), we get a palindrome (79999997).

The spelling of 47418523 in words is "forty-seven million, four hundred eighteen thousand, five hundred twenty-three".