5251988655 has 12 divisors (see below), whose sum is σ = 9103447080. Its totient is φ = 2801060592.

The previous prime is 5251988627. The next prime is 5251988671. The reversal of 5251988655 is 5568891525.

It is not a de Polignac number, because 5251988655 - 2¹⁸ = 5251726511 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 58355385 + ... + 58355474.

It is an arithmetic number, because the mean of its divisors is an integer number (758620590).

Almost surely, 2^5251988655 is an apocalyptic number.

5251988655 is a deficient number, since it is larger than the sum of its proper divisors (3851458425).

5251988655 is a wasteful number, since it uses less digits than its factorization.

5251988655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116710870 (or 116710867 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 54.

The square root of 5251988655 is about 72470.6054549015. The cubic root of 5251988655 is about 1738.2327429238.

The spelling of 5251988655 in words is "five billion, two hundred fifty-one million, nine hundred eighty-eight thousand, six hundred fifty-five".