52665538 has 8 divisors (see below), whose sum is σ = 82433088. Its totient is φ = 25187844.

The previous prime is 52665533. The next prime is 52665539. The reversal of 52665538 is 83556625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52665538.

It is not an unprimeable number, because it can be changed into a prime (52665533) 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, 572406 + ... + 572497.

It is an arithmetic number, because the mean of its divisors is an integer number (10304136).

Almost surely, 2^52665538 is an apocalyptic number.

52665538 is a deficient number, since it is larger than the sum of its proper divisors (29767550).

52665538 is a wasteful number, since it uses less digits than its factorization.

52665538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144928.

The product of its digits is 216000, while the sum is 40.

The square root of 52665538 is about 7257.1025898770. The cubic root of 52665538 is about 374.8367597655.

The spelling of 52665538 in words is "fifty-two million, six hundred sixty-five thousand, five hundred thirty-eight".