47542165 has 32 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 32524800.

The previous prime is 47542163. The next prime is 47542169. The reversal of 47542165 is 56124574.

It is not a de Polignac number, because 47542165 - 2¹ = 47542163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47542165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47542163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65032 + ... + 65758.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 2^47542165 is an apocalyptic number.

It is an amenable number.

47542165 is a deficient number, since it is larger than the sum of its proper divisors (18501995).

47542165 is a wasteful number, since it uses less digits than its factorization.

47542165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its digits is 33600, while the sum is 34.

The square root of 47542165 is about 6895.0826681049. The cubic root of 47542165 is about 362.2649510729.

The spelling of 47542165 in words is "forty-seven million, five hundred forty-two thousand, one hundred sixty-five".