1255320425650 has 24 divisors (see below), whose sum is σ = 2378950638084. Its totient is φ = 492654052800.

The previous prime is 1255320425647. The next prime is 1255320425683. The reversal of 1255320425650 is 565240235521.

It can be written as a sum of positive squares in 6 ways, for example, as 764884928929 + 490435496721 = 874577^2 + 700311^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 236850261 + ... + 236855560.

Almost surely, 2^{1255320425650} is an apocalyptic number.

1255320425650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255320425650 is a deficient number, since it is larger than the sum of its proper divisors (1123630212434).

1255320425650 is a wasteful number, since it uses less digits than its factorization.

1255320425650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473705886 (or 473705881 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 1255320425650 in words is "one trillion, two hundred fifty-five billion, three hundred twenty million, four hundred twenty-five thousand, six hundred fifty".