52236230642 has 6 divisors (see below), whose sum is σ = 78354830799. Its totient is φ = 26117953710.

The previous prime is 52236230593. The next prime is 52236230647. The reversal of 52236230642 is 24603263225.

It can be written as a sum of positive squares in only one way, i.e., 26118115321 + 26118115321 = 161611^2 + 161611^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161611.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52236230647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 242417 + ... + 404027.

Almost surely, 2^52236230642 is an apocalyptic number.

52236230642 is a deficient number, since it is larger than the sum of its proper divisors (26118600157).

52236230642 is an frugal number, since it uses more digits than its factorization.

52236230642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323224 (or 161613 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 52236230642 its reverse (24603263225), we get a palindrome (76839493867).

The spelling of 52236230642 in words is "fifty-two billion, two hundred thirty-six million, two hundred thirty thousand, six hundred forty-two".