47541221 has 18 divisors (see below), whose sum is σ = 59894802. Its totient is φ = 37608480.

The previous prime is 47541217. The next prime is 47541239. The reversal of 47541221 is 12214574.

It can be written as a sum of positive squares in 3 ways, for example, as 196 + 47541025 = 14^2 + 6895^2 .

It is not a de Polignac number, because 47541221 - 2² = 47541217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47541251) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5411 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (3327489).

Almost surely, 2^47541221 is an apocalyptic number.

It is an amenable number.

47541221 is a deficient number, since it is larger than the sum of its proper divisors (12353581).

47541221 is a wasteful number, since it uses less digits than its factorization.

47541221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5781 (or 5761 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 47541221 is about 6895.0142131833. The cubic root of 47541221 is about 362.2625533391.

Adding to 47541221 its reverse (12214574), we get a palindrome (59755795).

The spelling of 47541221 in words is "forty-seven million, five hundred forty-one thousand, two hundred twenty-one".