47538019 has 4 divisors (see below), whose sum is σ = 50040040. Its totient is φ = 45036000.

The previous prime is 47537969. The next prime is 47538077. The reversal of 47538019 is 91083574.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47538019 - 2⁷ = 47537891 is a prime.

It is a super-2 number, since 2×47538019² = 4519726500888722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47538119) 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, 1250982 + ... + 1251019.

It is an arithmetic number, because the mean of its divisors is an integer number (12510010).

Almost surely, 2^47538019 is an apocalyptic number.

47538019 is a deficient number, since it is larger than the sum of its proper divisors (2502021).

47538019 is a wasteful number, since it uses less digits than its factorization.

47538019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502020.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 47538019 is about 6894.7820125077. The cubic root of 47538019 is about 362.2544201113.

The spelling of 47538019 in words is "forty-seven million, five hundred thirty-eight thousand, nineteen".