2551301531205 has 32 divisors (see below), whose sum is σ = 4665743701248. Its totient is φ = 1166182617600.

The previous prime is 2551301531113. The next prime is 2551301531209. The reversal of 2551301531205 is 5021351031552.

It is a happy number.

It is not a de Polignac number, because 2551301531205 - 2¹⁰ = 2551301530181 is a prime.

It is a super-3 number, since 3×2551301531205³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551301531209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344386 + ... + 2284995.

It is an arithmetic number, because the mean of its divisors is an integer number (145804490664).

Almost surely, 2^{2551301531205} is an apocalyptic number.

It is an amenable number.

2551301531205 is a deficient number, since it is larger than the sum of its proper divisors (2114442170043).

2551301531205 is a wasteful number, since it uses less digits than its factorization.

2551301531205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638637.

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 2551301531205 its reverse (5021351031552), we get a palindrome (7572652562757).

The spelling of 2551301531205 in words is "two trillion, five hundred fifty-one billion, three hundred one million, five hundred thirty-one thousand, two hundred five".