1255315204452 has 48 divisors (see below), whose sum is σ = 3030614778240. Its totient is φ = 403937011968.

The previous prime is 1255315204411. The next prime is 1255315204457. The reversal of 1255315204452 is 2544025135521.

It is a self number, because there is not a number n which added to its sum of digits gives 1255315204452.

It is not an unprimeable number, because it can be changed into a prime (1255315204457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636048 + ... + 2277560.

It is an arithmetic number, because the mean of its divisors is an integer number (63137807880).

Almost surely, 2^{1255315204452} is an apocalyptic number.

1255315204452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1255315204452 is an abundant number, since it is smaller than the sum of its proper divisors (1775299573788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255315204452 is a wasteful number, since it uses less digits than its factorization.

1255315204452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647172 (or 647170 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 1255315204452 in words is "one trillion, two hundred fifty-five billion, three hundred fifteen million, two hundred four thousand, four hundred fifty-two".