47518771 has 2 divisors, whose sum is σ = 47518772. Its totient is φ = 47518770.

The previous prime is 47518747. The next prime is 47518781. The reversal of 47518771 is 17781574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47518771 - 2¹⁵ = 47486003 is a prime.

It is not a weakly prime, because it can be changed into another prime (47518711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23759385 + 23759386.

It is an arithmetic number, because the mean of its divisors is an integer number (23759386).

Almost surely, 2^47518771 is an apocalyptic number.

47518771 is a deficient number, since it is larger than the sum of its proper divisors (1).

47518771 is an equidigital number, since it uses as much as digits as its factorization.

47518771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54880, while the sum is 40.

The square root of 47518771 is about 6893.3860330029. The cubic root of 47518771 is about 362.2055216050.

The spelling of 47518771 in words is "forty-seven million, five hundred eighteen thousand, seven hundred seventy-one".