2551532145331 has 4 divisors (see below), whose sum is σ = 2747803848832. Its totient is φ = 2355260441832.

The previous prime is 2551532145289. The next prime is 2551532145341. The reversal of 2551532145331 is 1335412351552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551532145331 is a prime.

It is a super-2 number, since 2×2551532145331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551532145341) 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 3 ways as a sum of consecutive naturals, for example, 98135851731 + ... + 98135851756.

It is an arithmetic number, because the mean of its divisors is an integer number (686950962208).

Almost surely, 2^{2551532145331} is an apocalyptic number.

2551532145331 is a deficient number, since it is larger than the sum of its proper divisors (196271703501).

2551532145331 is a wasteful number, since it uses less digits than its factorization.

2551532145331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196271703500.

The product of its digits is 270000, while the sum is 40.

Adding to 2551532145331 its reverse (1335412351552), we get a palindrome (3886944496883).

The spelling of 2551532145331 in words is "two trillion, five hundred fifty-one billion, five hundred thirty-two million, one hundred forty-five thousand, three hundred thirty-one".