52525447 has 4 divisors (see below), whose sum is σ = 56565880. Its totient is φ = 48485016.

The previous prime is 52525433. The next prime is 52525477. The reversal of 52525447 is 74452525.

52525447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52525447 - 2¹¹ = 52523399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52525477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020197 + ... + 2020222.

It is an arithmetic number, because the mean of its divisors is an integer number (14141470).

Almost surely, 2^52525447 is an apocalyptic number.

52525447 is a deficient number, since it is larger than the sum of its proper divisors (4040433).

52525447 is a wasteful number, since it uses less digits than its factorization.

52525447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040432.

The product of its digits is 56000, while the sum is 34.

The square root of 52525447 is about 7247.4441701885. Note that the first 3 decimals coincide. The cubic root of 52525447 is about 374.5041077908.

The spelling of 52525447 in words is "fifty-two million, five hundred twenty-five thousand, four hundred forty-seven".