255645515045 has 8 divisors (see below), whose sum is σ = 306784840824. Its totient is φ = 204509596864.

The previous prime is 255645515017. The next prime is 255645515051. The reversal of 255645515045 is 540515546552.

It can be written as a sum of positive squares in 4 ways, for example, as 7603665601 + 248041849444 = 87199^2 + 498038^2 .

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 255645515045 - 2²⁴ = 255628737829 is a prime.

It is a Duffinian number.

It is a congruent 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, 683834 + ... + 989403.

It is an arithmetic number, because the mean of its divisors is an integer number (38348105103).

Almost surely, 2^255645515045 is an apocalyptic number.

It is an amenable number.

255645515045 is a deficient number, since it is larger than the sum of its proper divisors (51139325779).

255645515045 is a wasteful number, since it uses less digits than its factorization.

255645515045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703799.

The product of its (nonzero) digits is 3000000, while the sum is 47.

The spelling of 255645515045 in words is "two hundred fifty-five billion, six hundred forty-five million, five hundred fifteen thousand, forty-five".