47533220 has 48 divisors (see below), whose sum is σ = 115667328. Its totient is φ = 16070400.

The previous prime is 47533183. The next prime is 47533223. The reversal of 47533220 is 2233574.

It is a self number, because there is not a number n which added to its sum of digits gives 47533220.

It is not an unprimeable number, because it can be changed into a prime (47533223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7895 + ... + 12545.

It is an arithmetic number, because the mean of its divisors is an integer number (2409736).

Almost surely, 2^47533220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47533220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57833664).

47533220 is an abundant number, since it is smaller than the sum of its proper divisors (68134108).

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

47533220 is a wasteful number, since it uses less digits than its factorization.

47533220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 47533220 is about 6894.4339869202. The cubic root of 47533220 is about 362.2422297459.

Adding to 47533220 its reverse (2233574), we get a palindrome (49766794).

The spelling of 47533220 in words is "forty-seven million, five hundred thirty-three thousand, two hundred twenty".