5447521 has 2 divisors, whose sum is σ = 5447522. Its totient is φ = 5447520.

The previous prime is 5447513. The next prime is 5447543. The reversal of 5447521 is 1257445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3651921 + 1795600 = 1911^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 5447521 - 2³ = 5447513 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5447521.

It is not a weakly prime, because it can be changed into another prime (5447501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2723760 + 2723761.

It is an arithmetic number, because the mean of its divisors is an integer number (2723761).

Almost surely, 2^5447521 is an apocalyptic number.

It is an amenable number.

5447521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5447521 is an equidigital number, since it uses as much as digits as its factorization.

5447521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600, while the sum is 28.

The square root of 5447521 is about 2333.9925021302. The cubic root of 5447521 is about 175.9541999455.

The spelling of 5447521 in words is "five million, four hundred forty-seven thousand, five hundred twenty-one".