47551766 has 4 divisors (see below), whose sum is σ = 71327652. Its totient is φ = 23775882.

The previous prime is 47551739. The next prime is 47551769. The reversal of 47551766 is 66715574.

47551766 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 super-3 number, since 3×47551766³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47551769) 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 as a sum of consecutive naturals, namely, 11887940 + ... + 11887943.

It is an arithmetic number, because the mean of its divisors is an integer number (17831913).

Almost surely, 2^47551766 is an apocalyptic number.

47551766 is a deficient number, since it is larger than the sum of its proper divisors (23775886).

47551766 is a wasteful number, since it uses less digits than its factorization.

47551766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23775885.

The product of its digits is 176400, while the sum is 41.

The square root of 47551766 is about 6895.7788537626. The cubic root of 47551766 is about 362.2893355444.

The spelling of 47551766 in words is "forty-seven million, five hundred fifty-one thousand, seven hundred sixty-six".