52561447 has 4 divisors (see below), whose sum is σ = 52576576. Its totient is φ = 52546320.

The previous prime is 52561441. The next prime is 52561451. The reversal of 52561447 is 74416525.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52561447 - 2¹¹ = 52559399 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 (52561441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547 + ... + 10267.

It is an arithmetic number, because the mean of its divisors is an integer number (13144144).

Almost surely, 2^52561447 is an apocalyptic number.

52561447 is a deficient number, since it is larger than the sum of its proper divisors (15129).

52561447 is an equidigital number, since it uses as much as digits as its factorization.

52561447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15128.

The product of its digits is 33600, while the sum is 34.

The square root of 52561447 is about 7249.9273789466. The cubic root of 52561447 is about 374.5896477191.

The spelling of 52561447 in words is "fifty-two million, five hundred sixty-one thousand, four hundred forty-seven".