47221500 has 48 divisors (see below), whose sum is σ = 137513376. Its totient is φ = 12592000.

The previous prime is 47221487. The next prime is 47221501. The reversal of 47221500 is 512274.

47221500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47221501) 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 15 ways as a sum of consecutive naturals, for example, 14241 + ... + 17240.

It is an arithmetic number, because the mean of its divisors is an integer number (2864862).

Almost surely, 2^47221500 is an apocalyptic number.

It is an amenable number.

47221500 is an abundant number, since it is smaller than the sum of its proper divisors (90291876).

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

47221500 is a wasteful number, since it uses less digits than its factorization.

47221500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31503 (or 31491 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 47221500 is about 6871.7901597764. The cubic root of 47221500 is about 361.4486381769.

Adding to 47221500 its reverse (512274), we get a palindrome (47733774).

The spelling of 47221500 in words is "forty-seven million, two hundred twenty-one thousand, five hundred".