47085057 has 20 divisors (see below), whose sum is σ = 70995540. Its totient is φ = 31096224.

The previous prime is 47085047. The next prime is 47085079. The reversal of 47085057 is 75058074.

It can be written as a sum of positive squares in 2 ways, for example, as 42458256 + 4626801 = 6516^2 + 2151^2 .

It is not a de Polignac number, because 47085057 - 2⁶ = 47084993 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47085007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6163 + ... + 11495.

It is an arithmetic number, because the mean of its divisors is an integer number (3549777).

Almost surely, 2^47085057 is an apocalyptic number.

It is an amenable number.

47085057 is a deficient number, since it is larger than the sum of its proper divisors (23910483).

47085057 is a wasteful number, since it uses less digits than its factorization.

47085057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 5445 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 47085057 is about 6861.8552156104. The cubic root of 47085057 is about 361.1001760546.

The spelling of 47085057 in words is "forty-seven million, eighty-five thousand, fifty-seven".