51555452400330 has 64 divisors (see below), whose sum is σ = 132115408128000. Its totient is φ = 12844553553216.

The previous prime is 51555452400323. The next prime is 51555452400337. The reversal of 51555452400330 is 3300425455515.

It is an interprime number because it is at equal distance from previous prime (51555452400323) and next prime (51555452400337).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51555452400337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 868784830 + ... + 868844169.

It is an arithmetic number, because the mean of its divisors is an integer number (2064303252000).

Almost surely, 2^{51555452400330} is an apocalyptic number.

51555452400330 is an abundant number, since it is smaller than the sum of its proper divisors (80559955727670).

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

51555452400330 is a wasteful number, since it uses less digits than its factorization.

51555452400330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737629075.

The product of its (nonzero) digits is 900000, while the sum is 42.

Adding to 51555452400330 its reverse (3300425455515), we get a palindrome (54855877855845).

The spelling of 51555452400330 in words is "fifty-one trillion, five hundred fifty-five billion, four hundred fifty-two million, four hundred thousand, three hundred thirty".