51332420210 has 16 divisors (see below), whose sum is σ = 97833554136. Its totient is φ = 19325146368.

The previous prime is 51332420203. The next prime is 51332420219. The reversal of 51332420210 is 1202423315.

It can be written as a sum of positive squares in 4 ways, for example, as 43289379721 + 8043040489 = 208061^2 + 89683^2 .

It is not an unprimeable number, because it can be changed into a prime (51332420219) 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, 150977537 + ... + 150977876.

Almost surely, 2^51332420210 is an apocalyptic number.

51332420210 is a deficient number, since it is larger than the sum of its proper divisors (46501133926).

51332420210 is a wasteful number, since it uses less digits than its factorization.

51332420210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301955437.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 51332420210 its reverse (1202423315), we get a palindrome (52534843525).

The spelling of 51332420210 in words is "fifty-one billion, three hundred thirty-two million, four hundred twenty thousand, two hundred ten".