2551232321552 has 20 divisors (see below), whose sum is σ = 4943309253420. Its totient is φ = 1275539611008.

The previous prime is 2551232321543. The next prime is 2551232321557.

2551232321552 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1385903435536 + 1165328886016 = 1177244^2 + 1079504^2 .

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 3 ways as a sum of consecutive naturals, for example, 4508927 + ... + 5043102.

It is an arithmetic number, because the mean of its divisors is an integer number (247165462671).

Almost surely, 2^{2551232321552} is an apocalyptic number.

It is an amenable number.

2551232321552 is a deficient number, since it is larger than the sum of its proper divisors (2392076931868).

2551232321552 is a wasteful number, since it uses less digits than its factorization.

2551232321552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9568730 (or 9568724 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The spelling of 2551232321552 in words is "two trillion, five hundred fifty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, five hundred fifty-two".