47275531 has 2 divisors, whose sum is σ = 47275532. Its totient is φ = 47275530.

The previous prime is 47275519. The next prime is 47275573. The reversal of 47275531 is 13557274.

47275531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47275531 - 2²³ = 38886923 is a prime.

It is a super-2 number, since 2×47275531² = 4469951662663922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47275831) 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, 23637765 + 23637766.

It is an arithmetic number, because the mean of its divisors is an integer number (23637766).

Almost surely, 2^47275531 is an apocalyptic number.

47275531 is a deficient number, since it is larger than the sum of its proper divisors (1).

47275531 is an equidigital number, since it uses as much as digits as its factorization.

47275531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 34.

The square root of 47275531 is about 6875.7203986201. The cubic root of 47275531 is about 361.5864425496.

The spelling of 47275531 in words is "forty-seven million, two hundred seventy-five thousand, five hundred thirty-one".