47865251 has 16 divisors (see below), whose sum is σ = 58196160. Its totient is φ = 38430720.

The previous prime is 47865239. The next prime is 47865253. The reversal of 47865251 is 15256874.

It is a cyclic number.

It is not a de Polignac number, because 47865251 - 2²² = 43670947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47865253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27845 + ... + 29513.

It is an arithmetic number, because the mean of its divisors is an integer number (3637260).

Almost surely, 2^47865251 is an apocalyptic number.

47865251 is a deficient number, since it is larger than the sum of its proper divisors (10330909).

47865251 is a wasteful number, since it uses less digits than its factorization.

47865251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934.

The product of its digits is 67200, while the sum is 38.

The square root of 47865251 is about 6918.4717243044. The cubic root of 47865251 is about 363.0837231974.

The spelling of 47865251 in words is "forty-seven million, eight hundred sixty-five thousand, two hundred fifty-one".