255278052505 has 16 divisors (see below), whose sum is σ = 350123082624. Its totient is φ = 175034073600.

The previous prime is 255278052499. The next prime is 255278052511. The reversal of 255278052505 is 505250872552.

It is an interprime number because it is at equal distance from previous prime (255278052499) and next prime (255278052511).

It is not a de Polignac number, because 255278052505 - 2²⁹ = 254741181593 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176905 + ... + 736105.

It is an arithmetic number, because the mean of its divisors is an integer number (21882692664).

Almost surely, 2^255278052505 is an apocalyptic number.

It is an amenable number.

255278052505 is a deficient number, since it is larger than the sum of its proper divisors (94845030119).

255278052505 is a wasteful number, since it uses less digits than its factorization.

255278052505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572256.

The product of its (nonzero) digits is 1400000, while the sum is 46.

The spelling of 255278052505 in words is "two hundred fifty-five billion, two hundred seventy-eight million, fifty-two thousand, five hundred five".