51553034321 has 8 divisors (see below), whose sum is σ = 53190362400. Its totient is φ = 49933798560.

The previous prime is 51553034297. The next prime is 51553034339. The reversal of 51553034321 is 12343035515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51553034321 - 2⁶ = 51553034257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51553034341) 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, 4517291 + ... + 4528688.

It is an arithmetic number, because the mean of its divisors is an integer number (6648795300).

Almost surely, 2^51553034321 is an apocalyptic number.

It is an amenable number.

51553034321 is a deficient number, since it is larger than the sum of its proper divisors (1637328079).

51553034321 is a wasteful number, since it uses less digits than its factorization.

51553034321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046159.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 51553034321 its reverse (12343035515), we get a palindrome (63896069836).

The spelling of 51553034321 in words is "fifty-one billion, five hundred fifty-three million, thirty-four thousand, three hundred twenty-one".