47275518 has 8 divisors (see below), whose sum is σ = 94551048. Its totient is φ = 15758504.

The previous prime is 47275517. The next prime is 47275519. The reversal of 47275518 is 81557274.

It is an interprime number because it is at equal distance from previous prime (47275517) and next prime (47275519).

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

47275518 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47275513) 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 3 ways as a sum of consecutive naturals, for example, 3939621 + ... + 3939632.

It is an arithmetic number, because the mean of its divisors is an integer number (11818881).

Almost surely, 2^47275518 is an apocalyptic number.

47275518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47275518 is a wasteful number, since it uses less digits than its factorization.

47275518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7879258.

The product of its digits is 78400, while the sum is 39.

The square root of 47275518 is about 6875.7194532645. The cubic root of 47275518 is about 361.5864094061.

The spelling of 47275518 in words is "forty-seven million, two hundred seventy-five thousand, five hundred eighteen".