51435005234 has 16 divisors (see below), whose sum is σ = 77307615000. Its totient is φ = 25665853824.

The previous prime is 51435005221. The next prime is 51435005239. The reversal of 51435005234 is 43250053415.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31625287225 + 19809718009 = 177835^2 + 140747^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51435005234.

It is not an unprimeable number, because it can be changed into a prime (51435005239) 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, 2065892 + ... + 2090640.

Almost surely, 2^51435005234 is an apocalyptic number.

51435005234 is a deficient number, since it is larger than the sum of its proper divisors (25872609766).

51435005234 is a wasteful number, since it uses less digits than its factorization.

51435005234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26797.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 51435005234 its reverse (43250053415), we get a palindrome (94685058649).

The spelling of 51435005234 in words is "fifty-one billion, four hundred thirty-five million, five thousand, two hundred thirty-four".