47165540 has 24 divisors (see below), whose sum is σ = 99574272. Its totient is φ = 18765920.

The previous prime is 47165483. The next prime is 47165549. The reversal of 47165540 is 4556174.

47165540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47165497 and 47165506.

It is not an unprimeable number, because it can be changed into a prime (47165549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2354 + ... + 9993.

It is an arithmetic number, because the mean of its divisors is an integer number (4148928).

Almost surely, 2^47165540 is an apocalyptic number.

It is an amenable number.

47165540 is an abundant number, since it is smaller than the sum of its proper divisors (52408732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47165540 is a wasteful number, since it uses less digits than its factorization.

47165540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12547 (or 12545 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 47165540 is about 6867.7172335500. The cubic root of 47165540 is about 361.3058030916.

The spelling of 47165540 in words is "forty-seven million, one hundred sixty-five thousand, five hundred forty".