52644385 has 4 divisors (see below), whose sum is σ = 63173268. Its totient is φ = 42115504.

The previous prime is 52644373. The next prime is 52644391. The reversal of 52644385 is 58344625.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37246609 + 15397776 = 6103^2 + 3924^2 .

It is a cyclic number.

It is not a de Polignac number, because 52644385 - 2⁵ = 52644353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264434 + ... + 5264443.

It is an arithmetic number, because the mean of its divisors is an integer number (15793317).

Almost surely, 2^52644385 is an apocalyptic number.

It is an amenable number.

52644385 is a deficient number, since it is larger than the sum of its proper divisors (10528883).

52644385 is a wasteful number, since it uses less digits than its factorization.

52644385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10528882.

The product of its digits is 115200, while the sum is 37.

The square root of 52644385 is about 7255.6450436884. The cubic root of 52644385 is about 374.7865689192.

The spelling of 52644385 in words is "fifty-two million, six hundred forty-four thousand, three hundred eighty-five".