47543481 has 6 divisors (see below), whose sum is σ = 68673930. Its totient is φ = 31695648.

The previous prime is 47543471. The next prime is 47543519. The reversal of 47543481 is 18434574.

It can be written as a sum of positive squares in only one way, i.e., 47485881 + 57600 = 6891^2 + 240^2 .

It is not a de Polignac number, because 47543481 - 2¹⁰ = 47542457 is a prime.

It is a super-2 number, since 2×47543481² = 4520765171194722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47543411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2641296 + ... + 2641313.

It is an arithmetic number, because the mean of its divisors is an integer number (11445655).

Almost surely, 2^47543481 is an apocalyptic number.

It is an amenable number.

47543481 is a deficient number, since it is larger than the sum of its proper divisors (21130449).

47543481 is a wasteful number, since it uses less digits than its factorization.

47543481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282615 (or 5282612 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 47543481 is about 6895.1780977724. The cubic root of 47543481 is about 362.2682936235.

It can be divided in two parts, 475 and 43481, that added together give a triangular number (43956 = T₂₉₆).

The spelling of 47543481 in words is "forty-seven million, five hundred forty-three thousand, four hundred eighty-one".