47253521 has 8 divisors (see below), whose sum is σ = 54130560. Its totient is φ = 40408128.

The previous prime is 47253509. The next prime is 47253527. The reversal of 47253521 is 12535274.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47253521 - 2¹⁰ = 47252497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47253527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4616 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (6766320).

Almost surely, 2^47253521 is an apocalyptic number.

It is an amenable number.

47253521 is a deficient number, since it is larger than the sum of its proper divisors (6877039).

47253521 is a wasteful number, since it uses less digits than its factorization.

47253521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15823.

The product of its digits is 8400, while the sum is 29.

The square root of 47253521 is about 6874.1196527264. The cubic root of 47253521 is about 361.5303194148.

Adding to 47253521 its reverse (12535274), we get a palindrome (59788795).

It can be divided in two parts, 47253 and 521, that added together give a palindrome (47774).

The spelling of 47253521 in words is "forty-seven million, two hundred fifty-three thousand, five hundred twenty-one".