47523481 has 2 divisors, whose sum is σ = 47523482. Its totient is φ = 47523480.

The previous prime is 47523409. The next prime is 47523491. The reversal of 47523481 is 18432574.

47523481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46785600 + 737881 = 6840^2 + 859^2 .

It is a cyclic number.

It is not a de Polignac number, because 47523481 - 2¹¹ = 47521433 is a prime.

It is a super-2 number, since 2×47523481² = 4516962492714722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47523491) 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 as a sum of consecutive naturals, namely, 23761740 + 23761741.

It is an arithmetic number, because the mean of its divisors is an integer number (23761741).

Almost surely, 2^47523481 is an apocalyptic number.

It is an amenable number.

47523481 is a deficient number, since it is larger than the sum of its proper divisors (1).

47523481 is an equidigital number, since it uses as much as digits as its factorization.

47523481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 47523481 is about 6893.7276563554. The cubic root of 47523481 is about 362.2174883262.

The spelling of 47523481 in words is "forty-seven million, five hundred twenty-three thousand, four hundred eighty-one".