51433430554 has 12 divisors (see below), whose sum is σ = 84801400362. Its totient is φ = 23378831960.

The previous prime is 51433430537. The next prime is 51433430681. The reversal of 51433430554 is 45503433415.

It can be written as a sum of positive squares in only one way, i.e., 35030737225 + 16402693329 = 187165^2 + 128073^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106267177 + ... + 106267660.

Almost surely, 2^51433430554 is an apocalyptic number.

51433430554 is a deficient number, since it is larger than the sum of its proper divisors (33367969808).

51433430554 is a wasteful number, since it uses less digits than its factorization.

51433430554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212534861 (or 212534850 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 51433430554 its reverse (45503433415), we get a palindrome (96936863969).

The spelling of 51433430554 in words is "fifty-one billion, four hundred thirty-three million, four hundred thirty thousand, five hundred fifty-four".