52618985 has 4 divisors (see below), whose sum is σ = 63142788. Its totient is φ = 42095184.

The previous prime is 52618981. The next prime is 52619033. The reversal of 52618985 is 58981625.

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 30791401 + 21827584 = 5549^2 + 4672^2 .

It is a cyclic number.

It is not a de Polignac number, because 52618985 - 2² = 52618981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52618981) 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, 5261894 + ... + 5261903.

It is an arithmetic number, because the mean of its divisors is an integer number (15785697).

Almost surely, 2^52618985 is an apocalyptic number.

It is an amenable number.

52618985 is a deficient number, since it is larger than the sum of its proper divisors (10523803).

52618985 is a wasteful number, since it uses less digits than its factorization.

52618985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523802.

The product of its digits is 172800, while the sum is 44.

The square root of 52618985 is about 7253.8944712478. The cubic root of 52618985 is about 374.7262832226.

The spelling of 52618985 in words is "fifty-two million, six hundred eighteen thousand, nine hundred eighty-five".