255105115251545 has 16 divisors (see below), whose sum is σ = 337715139443472. Its totient is φ = 183790552074240.

The previous prime is 255105115251533. The next prime is 255105115251557. The reversal of 255105115251545 is 545152511501552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (255105115251533) and next prime (255105115251557).

It can be written as a sum of positive squares in 8 ways, for example, as 140841757376329 + 114263357875216 = 11867677^2 + 10689404^2 .

It is not a de Polignac number, because 255105115251545 - 2⁸ = 255105115251289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255105115251545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47862120272 + ... + 47862125601.

It is an arithmetic number, because the mean of its divisors is an integer number (21107196215217).

Almost surely, 2^{255105115251545} is an apocalyptic number.

It is an amenable number.

255105115251545 is a deficient number, since it is larger than the sum of its proper divisors (82610024191927).

255105115251545 is a wasteful number, since it uses less digits than its factorization.

255105115251545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95724245932.

The product of its (nonzero) digits is 1250000, while the sum is 47.

The spelling of 255105115251545 in words is "two hundred fifty-five trillion, one hundred five billion, one hundred fifteen million, two hundred fifty-one thousand, five hundred forty-five".