52236561 has 8 divisors (see below), whose sum is σ = 75006400. Its totient is φ = 32145552.

The previous prime is 52236539. The next prime is 52236589. The reversal of 52236561 is 16563225.

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

It is not a de Polignac number, because 52236561 - 2¹⁴ = 52220177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52236521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669661 + ... + 669738.

It is an arithmetic number, because the mean of its divisors is an integer number (9375800).

Almost surely, 2^52236561 is an apocalyptic number.

It is an amenable number.

52236561 is a deficient number, since it is larger than the sum of its proper divisors (22769839).

52236561 is a wasteful number, since it uses less digits than its factorization.

52236561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339415.

The product of its digits is 10800, while the sum is 30.

The square root of 52236561 is about 7227.4864925505. The cubic root of 52236561 is about 373.8162637588.

Adding to 52236561 its reverse (16563225), we get a palindrome (68799786).

The spelling of 52236561 in words is "fifty-two million, two hundred thirty-six thousand, five hundred sixty-one".