47522113 has 4 divisors (see below), whose sum is σ = 47763540. Its totient is φ = 47280688.

The previous prime is 47522107. The next prime is 47522129. The reversal of 47522113 is 31122574.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23590449 + 23931664 = 4857^2 + 4892^2 .

It is a cyclic number.

It is not a de Polignac number, because 47522113 - 2¹⁷ = 47391041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47522513) 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, 120418 + ... + 120811.

It is an arithmetic number, because the mean of its divisors is an integer number (11940885).

Almost surely, 2^47522113 is an apocalyptic number.

It is an amenable number.

47522113 is a deficient number, since it is larger than the sum of its proper divisors (241427).

47522113 is a wasteful number, since it uses less digits than its factorization.

47522113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241426.

The product of its digits is 1680, while the sum is 25.

The square root of 47522113 is about 6893.6284350116. The cubic root of 47522113 is about 362.2140127230.

Adding to 47522113 its reverse (31122574), we get a palindrome (78644687).

The spelling of 47522113 in words is "forty-seven million, five hundred twenty-two thousand, one hundred thirteen".