47451975 has 24 divisors (see below), whose sum is σ = 81162960. Its totient is φ = 24433920.

The previous prime is 47451973. The next prime is 47451991. The reversal of 47451975 is 57915474.

It is a happy number.

47451975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47451975 - 2¹ = 47451973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47451973) 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 23 ways as a sum of consecutive naturals, for example, 8734 + ... + 13083.

It is an arithmetic number, because the mean of its divisors is an integer number (3381790).

Almost surely, 2^47451975 is an apocalyptic number.

47451975 is a deficient number, since it is larger than the sum of its proper divisors (33710985).

47451975 is a wasteful number, since it uses less digits than its factorization.

47451975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21859 (or 21854 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 47451975 is about 6888.5393952564. The cubic root of 47451975 is about 362.0357274751.

The spelling of 47451975 in words is "forty-seven million, four hundred fifty-one thousand, nine hundred seventy-five".