51204315043450 has 12 divisors (see below), whose sum is σ = 95240025980910. Its totient is φ = 20481726017360.

The previous prime is 51204315043417. The next prime is 51204315043457. The reversal of 51204315043450 is 5434051340215.

It can be written as a sum of positive squares in 3 ways, for example, as 48621515705569 + 2582799337881 = 6972913^2 + 1607109^2 .

It is not an unprimeable number, because it can be changed into a prime (51204315043457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512043150385 + ... + 512043150484.

Almost surely, 2^{51204315043450} is an apocalyptic number.

51204315043450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51204315043450 is a deficient number, since it is larger than the sum of its proper divisors (44035710937460).

51204315043450 is a wasteful number, since it uses less digits than its factorization.

51204315043450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024086300881 (or 1024086300876 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 51204315043450 its reverse (5434051340215), we get a palindrome (56638366383665).

The spelling of 51204315043450 in words is "fifty-one trillion, two hundred four billion, three hundred fifteen million, forty-three thousand, four hundred fifty".