1255041903065 has 8 divisors (see below), whose sum is σ = 1506057907848. Its totient is φ = 1004028439680.

The previous prime is 1255041903061. The next prime is 1255041903079. The reversal of 1255041903065 is 5603091405521.

It can be written as a sum of positive squares in 4 ways, for example, as 71619929161 + 1183421973904 = 267619^2 + 1087852^2 .

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

It is not a de Polignac number, because 1255041903065 - 2² = 1255041903061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255041903061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710135 + ... + 1736195.

It is an arithmetic number, because the mean of its divisors is an integer number (188257238481).

Almost surely, 2^{1255041903065} is an apocalyptic number.

It is an amenable number.

1255041903065 is a deficient number, since it is larger than the sum of its proper divisors (251016004783).

1255041903065 is a wasteful number, since it uses less digits than its factorization.

1255041903065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270699.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 1255041903065 in words is "one trillion, two hundred fifty-five billion, forty-one million, nine hundred three thousand, sixty-five".