47518573 has 4 divisors (see below), whose sum is σ = 48297628. Its totient is φ = 46739520.

The previous prime is 47518561. The next prime is 47518609. The reversal of 47518573 is 37581574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37581574 = 2 ⋅18790787.

It can be written as a sum of positive squares in 2 ways, for example, as 2601769 + 44916804 = 1613^2 + 6702^2 .

It is a cyclic number.

It is not a de Polignac number, because 47518573 - 2⁹ = 47518061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47518073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389436 + ... + 389557.

It is an arithmetic number, because the mean of its divisors is an integer number (12074407).

Almost surely, 2^47518573 is an apocalyptic number.

It is an amenable number.

47518573 is a deficient number, since it is larger than the sum of its proper divisors (779055).

47518573 is an equidigital number, since it uses as much as digits as its factorization.

47518573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779054.

The product of its digits is 117600, while the sum is 40.

The square root of 47518573 is about 6893.3716713956. The cubic root of 47518573 is about 362.2050185281.

The spelling of 47518573 in words is "forty-seven million, five hundred eighteen thousand, five hundred seventy-three".