47792251 has 4 divisors (see below), whose sum is σ = 51468592. Its totient is φ = 44115912.

The previous prime is 47792243. The next prime is 47792257. The reversal of 47792251 is 15229774.

47792251 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.

It is a cyclic number.

It is not a de Polignac number, because 47792251 - 2³ = 47792243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47792251.

It is not an unprimeable number, because it can be changed into a prime (47792257) 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, 1838151 + ... + 1838176.

It is an arithmetic number, because the mean of its divisors is an integer number (12867148).

Almost surely, 2^47792251 is an apocalyptic number.

47792251 is a deficient number, since it is larger than the sum of its proper divisors (3676341).

47792251 is a wasteful number, since it uses less digits than its factorization.

47792251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676340.

The product of its digits is 35280, while the sum is 37.

The square root of 47792251 is about 6913.1939796305. The cubic root of 47792251 is about 362.8990478354.

The spelling of 47792251 in words is "forty-seven million, seven hundred ninety-two thousand, two hundred fifty-one".