47055317 has 4 divisors (see below), whose sum is σ = 47073516. Its totient is φ = 47037120.

The previous prime is 47055301. The next prime is 47055353. The reversal of 47055317 is 71355074.

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 461041 + 46594276 = 679^2 + 6826^2 .

It is a cyclic number.

It is not a de Polignac number, because 47055317 - 2⁴ = 47055301 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 (47055367) 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, 4418 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (11768379).

Almost surely, 2^47055317 is an apocalyptic number.

It is an amenable number.

47055317 is a deficient number, since it is larger than the sum of its proper divisors (18199).

47055317 is a wasteful number, since it uses less digits than its factorization.

47055317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18198.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 47055317 is about 6859.6878208851. The cubic root of 47055317 is about 361.0241336628.

The spelling of 47055317 in words is "forty-seven million, fifty-five thousand, three hundred seventeen".