255064026505 has 8 divisors (see below), whose sum is σ = 324081351432. Its totient is φ = 192048208128.

The previous prime is 255064026491. The next prime is 255064026527. The reversal of 255064026505 is 505620460552.

It can be written as a sum of positive squares in 4 ways, for example, as 69017594944 + 186046431561 = 262712^2 + 431331^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 255064026505 - 2⁵ = 255064026473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500376542 + ... + 1500376711.

It is an arithmetic number, because the mean of its divisors is an integer number (40510168929).

Almost surely, 2^255064026505 is an apocalyptic number.

It is an amenable number.

255064026505 is a deficient number, since it is larger than the sum of its proper divisors (69017324927).

255064026505 is a wasteful number, since it uses less digits than its factorization.

255064026505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000753275.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 255064026505 in words is "two hundred fifty-five billion, sixty-four million, twenty-six thousand, five hundred five".