47845251 has 12 divisors (see below), whose sum is σ = 69782128. Its totient is φ = 31586544.

The previous prime is 47845247. The next prime is 47845253. The reversal of 47845251 is 15254874.

47845251 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 47845251 - 2² = 47845247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47845253) 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 11 ways as a sum of consecutive naturals, for example, 24880 + ... + 26733.

Almost surely, 2^47845251 is an apocalyptic number.

47845251 is a deficient number, since it is larger than the sum of its proper divisors (21936877).

47845251 is a wasteful number, since it uses less digits than its factorization.

47845251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51722 (or 51719 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 47845251 is about 6917.0261673641. The cubic root of 47845251 is about 363.0331458930.

The spelling of 47845251 in words is "forty-seven million, eight hundred forty-five thousand, two hundred fifty-one".