255466517153 has 4 divisors (see below), whose sum is σ = 256375650948. Its totient is φ = 254557383360.

The previous prime is 255466517143. The next prime is 255466517161. The reversal of 255466517153 is 351715664552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85736524864 + 169729992289 = 292808^2 + 411983^2 .

It is a cyclic number.

It is not a de Polignac number, because 255466517153 - 2²² = 255462322849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255466517113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454566476 + ... + 454567037.

It is an arithmetic number, because the mean of its divisors is an integer number (64093912737).

Almost surely, 2^255466517153 is an apocalyptic number.

It is an amenable number.

255466517153 is a deficient number, since it is larger than the sum of its proper divisors (909133795).

255466517153 is an equidigital number, since it uses as much as digits as its factorization.

255466517153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909133794.

The product of its digits is 3780000, while the sum is 50.

The spelling of 255466517153 in words is "two hundred fifty-five billion, four hundred sixty-six million, five hundred seventeen thousand, one hundred fifty-three".