47975545 has 4 divisors (see below), whose sum is σ = 57570660. Its totient is φ = 38380432.

The previous prime is 47975533. The next prime is 47975549. The reversal of 47975545 is 54557974.

47975545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54557974 = 2 ⋅27278987.

It can be written as a sum of positive squares in 2 ways, for example, as 7678441 + 40297104 = 2771^2 + 6348^2 .

It is a cyclic number.

It is not a de Polignac number, because 47975545 - 2¹⁵ = 47942777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47975495 and 47975504.

It is not an unprimeable number, because it can be changed into a prime (47975549) 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 3 ways as a sum of consecutive naturals, for example, 4797550 + ... + 4797559.

It is an arithmetic number, because the mean of its divisors is an integer number (14392665).

Almost surely, 2^47975545 is an apocalyptic number.

It is an amenable number.

47975545 is a deficient number, since it is larger than the sum of its proper divisors (9595115).

47975545 is an equidigital number, since it uses as much as digits as its factorization.

47975545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595114.

The product of its digits is 882000, while the sum is 46.

The square root of 47975545 is about 6926.4381178207. The cubic root of 47975545 is about 363.3623890763.

The spelling of 47975545 in words is "forty-seven million, nine hundred seventy-five thousand, five hundred forty-five".