47552921 has 8 divisors (see below), whose sum is σ = 51719304. Its totient is φ = 43459200.

The previous prime is 47552917. The next prime is 47552929. The reversal of 47552921 is 12925574.

It can be written as a sum of positive squares in 4 ways, for example, as 3463321 + 44089600 = 1861^2 + 6640^2 .

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 47552921 - 2² = 47552917 is a prime.

It is a super-2 number, since 2×47552921² = 4522560591264482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47552929) 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, 16796 + ... + 19421.

It is an arithmetic number, because the mean of its divisors is an integer number (6464913).

Almost surely, 2^47552921 is an apocalyptic number.

It is an amenable number.

47552921 is a deficient number, since it is larger than the sum of its proper divisors (4166383).

47552921 is a wasteful number, since it uses less digits than its factorization.

47552921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36331.

The product of its digits is 25200, while the sum is 35.

The square root of 47552921 is about 6895.8626001393. The cubic root of 47552921 is about 362.2922687743.

The spelling of 47552921 in words is "forty-seven million, five hundred fifty-two thousand, nine hundred twenty-one".