47571313 has 4 divisors (see below), whose sum is σ = 47611620. Its totient is φ = 47531008.

The previous prime is 47571311. The next prime is 47571341. The reversal of 47571313 is 31317574.

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 15626209 + 31945104 = 3953^2 + 5652^2 .

It is a cyclic number.

It is not a de Polignac number, because 47571313 - 2¹ = 47571311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47571311) 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, 18328 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (11902905).

Almost surely, 2^47571313 is an apocalyptic number.

It is an amenable number.

47571313 is a deficient number, since it is larger than the sum of its proper divisors (40307).

47571313 is a wasteful number, since it uses less digits than its factorization.

47571313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40306.

The product of its digits is 8820, while the sum is 31.

The square root of 47571313 is about 6897.1960244726. The cubic root of 47571313 is about 362.3389705710.

Adding to 47571313 its reverse (31317574), we get a palindrome (78888887).

The spelling of 47571313 in words is "forty-seven million, five hundred seventy-one thousand, three hundred thirteen".