2551232321553 has 8 divisors (see below), whose sum is σ = 3401656020000. Its totient is φ = 1700815085408.

The previous prime is 2551232321543. The next prime is 2551232321557. The reversal of 2551232321553 is 3551232321552.

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 2551232321553 - 2¹² = 2551232317457 is a prime.

It is a super-3 number, since 3×2551232321553³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2551232321557) 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, 603903 + ... + 2338196.

It is an arithmetic number, because the mean of its divisors is an integer number (425207002500).

Almost surely, 2^{2551232321553} is an apocalyptic number.

It is an amenable number.

2551232321553 is a deficient number, since it is larger than the sum of its proper divisors (850423698447).

2551232321553 is a wasteful number, since it uses less digits than its factorization.

2551232321553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231151.

The product of its digits is 270000, while the sum is 39.

Subtracting 2551232321553 from its reverse (3551232321552), we obtain a palindrome (999999999999).

The spelling of 2551232321553 in words is "two trillion, five hundred fifty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, five hundred fifty-three".