47243251 has 8 divisors (see below), whose sum is σ = 51609600. Its totient is φ = 42888840.

The previous prime is 47243249. The next prime is 47243263. The reversal of 47243251 is 15234274.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47243251 - 2¹ = 47243249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47243201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6670 + ... + 11788.

It is an arithmetic number, because the mean of its divisors is an integer number (6451200).

Almost surely, 2^47243251 is an apocalyptic number.

47243251 is a deficient number, since it is larger than the sum of its proper divisors (4366349).

47243251 is a wasteful number, since it uses less digits than its factorization.

47243251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5969.

The product of its digits is 6720, while the sum is 28.

The square root of 47243251 is about 6873.3726073886. The cubic root of 47243251 is about 361.5041260552.

The spelling of 47243251 in words is "forty-seven million, two hundred forty-three thousand, two hundred fifty-one".