51233021552 has 20 divisors (see below), whose sum is σ = 101136886200. Its totient is φ = 25133179968.

The previous prime is 51233021537. The next prime is 51233021591. The reversal of 51233021552 is 25512033215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30207302 + ... + 30208997.

It is an arithmetic number, because the mean of its divisors is an integer number (5056844310).

Almost surely, 2^51233021552 is an apocalyptic number.

It is an amenable number.

51233021552 is a deficient number, since it is larger than the sum of its proper divisors (49903864648).

51233021552 is a wasteful number, since it uses less digits than its factorization.

51233021552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60416360 (or 60416354 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 51233021552 its reverse (25512033215), we get a palindrome (76745054767).

The spelling of 51233021552 in words is "fifty-one billion, two hundred thirty-three million, twenty-one thousand, five hundred fifty-two".