51211503343432 has 32 divisors (see below), whose sum is σ = 96090937371000. Its totient is φ = 25587258891264.

The previous prime is 51211503343417. The next prime is 51211503343433. The reversal of 51211503343432 is 23434330511215.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49988944121796 + 1222559221636 = 7070286^2 + 1105694^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51211503343391 and 51211503343400.

It is not an unprimeable number, because it can be changed into a prime (51211503343433) 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, 74703088 + ... + 75385504.

Almost surely, 2^{51211503343432} is an apocalyptic number.

It is an amenable number.

51211503343432 is a deficient number, since it is larger than the sum of its proper divisors (44879434027568).

51211503343432 is a wasteful number, since it uses less digits than its factorization.

51211503343432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689185 (or 689181 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 51211503343432 its reverse (23434330511215), we get a palindrome (74645833854647).

The spelling of 51211503343432 in words is "fifty-one trillion, two hundred eleven billion, five hundred three million, three hundred forty-three thousand, four hundred thirty-two".