47543540 has 24 divisors (see below), whose sum is σ = 108918432. Its totient is φ = 17288480.

The previous prime is 47543537. The next prime is 47543549. The reversal of 47543540 is 4534574.

It is a junction number, because it is equal to n+sod(n) for n = 47543497 and 47543506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47543549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107834 + ... + 108273.

It is an arithmetic number, because the mean of its divisors is an integer number (4538268).

Almost surely, 2^47543540 is an apocalyptic number.

It is an amenable number.

47543540 is an abundant number, since it is smaller than the sum of its proper divisors (61374892).

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

47543540 is a wasteful number, since it uses less digits than its factorization.

47543540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216127 (or 216125 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 47543540 is about 6895.1823761232. The cubic root of 47543540 is about 362.2684434781.

The spelling of 47543540 in words is "forty-seven million, five hundred forty-three thousand, five hundred forty".