47745249 has 16 divisors (see below), whose sum is σ = 65204160. Its totient is φ = 31066560.

The previous prime is 47745227. The next prime is 47745259. The reversal of 47745249 is 94254774.

It is not a de Polignac number, because 47745249 - 2⁷ = 47745121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47745249.

It is not an unprimeable number, because it can be changed into a prime (47745259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24499 + ... + 26375.

It is an arithmetic number, because the mean of its divisors is an integer number (4075260).

Almost surely, 2^47745249 is an apocalyptic number.

It is an amenable number.

47745249 is a deficient number, since it is larger than the sum of its proper divisors (17458911).

47745249 is a wasteful number, since it uses less digits than its factorization.

47745249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080.

The product of its digits is 282240, while the sum is 42.

The square root of 47745249 is about 6909.7937016962. The cubic root of 47745249 is about 362.7800426592.

The spelling of 47745249 in words is "forty-seven million, seven hundred forty-five thousand, two hundred forty-nine".