255503172802 has 4 divisors (see below), whose sum is σ = 383254759206. Its totient is φ = 127751586400.

The previous prime is 255503172787. The next prime is 255503172839. The reversal of 255503172802 is 208271305552.

255503172802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 200353816881 + 55149355921 = 447609^2 + 234839^2 .

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 as a sum of consecutive naturals, namely, 63875793199 + ... + 63875793202.

Almost surely, 2^255503172802 is an apocalyptic number.

255503172802 is a deficient number, since it is larger than the sum of its proper divisors (127751586404).

255503172802 is a wasteful number, since it uses less digits than its factorization.

255503172802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127751586403.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 255503172802 in words is "two hundred fifty-five billion, five hundred three million, one hundred seventy-two thousand, eight hundred two".