255552764987 has 8 divisors (see below), whose sum is σ = 275455753104. Its totient is φ = 235684788768.

The previous prime is 255552764981. The next prime is 255552764989. The reversal of 255552764987 is 789467255552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255552764987 - 2⁶ = 255552764923 is a prime.

It is a super-2 number, since 2×255552764987² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255552764981) 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, 8737808 + ... + 8767005.

It is an arithmetic number, because the mean of its divisors is an integer number (34431969138).

Almost surely, 2^255552764987 is an apocalyptic number.

255552764987 is a deficient number, since it is larger than the sum of its proper divisors (19902988117).

255552764987 is a wasteful number, since it uses less digits than its factorization.

255552764987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17505949.

The product of its digits is 211680000, while the sum is 65.

The spelling of 255552764987 in words is "two hundred fifty-five billion, five hundred fifty-two million, seven hundred sixty-four thousand, nine hundred eighty-seven".