51433203320 has 32 divisors (see below), whose sum is σ = 115769811600. Its totient is φ = 20565262848.

The previous prime is 51433203271. The next prime is 51433203323. The reversal of 51433203320 is 2330233415.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51433203320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51433203323) 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, 146129 + ... + 352448.

Almost surely, 2^51433203320 is an apocalyptic number.

It is an amenable number.

51433203320 is an abundant number, since it is smaller than the sum of its proper divisors (64336608280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51433203320 is a wasteful number, since it uses less digits than its factorization.

51433203320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501167 (or 501163 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 51433203320 its reverse (2330233415), we get a palindrome (53763436735).

The spelling of 51433203320 in words is "fifty-one billion, four hundred thirty-three million, two hundred three thousand, three hundred twenty".