47253621 has 8 divisors (see below), whose sum is σ = 63058464. Its totient is φ = 31475600.

The previous prime is 47253617. The next prime is 47253653. The reversal of 47253621 is 12635274.

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 47253621 - 2² = 47253617 is a prime.

It is a super-2 number, since 2×47253621² = 4465809395223282, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47253611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151 + ... + 9956.

It is an arithmetic number, because the mean of its divisors is an integer number (7882308).

Almost surely, 2^47253621 is an apocalyptic number.

It is an amenable number.

47253621 is a deficient number, since it is larger than the sum of its proper divisors (15804843).

47253621 is a wasteful number, since it uses less digits than its factorization.

47253621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13411.

The product of its digits is 10080, while the sum is 30.

The square root of 47253621 is about 6874.1269263813. The cubic root of 47253621 is about 361.5305744434.

Adding to 47253621 its reverse (12635274), we get a palindrome (59888895).

It can be divided in two parts, 47253 and 621, that added together give a palindrome (47874).

The spelling of 47253621 in words is "forty-seven million, two hundred fifty-three thousand, six hundred twenty-one".