1255780463 has 16 divisors (see below), whose sum is σ = 1548279360. Its totient is φ = 993947136.

The previous prime is 1255780453. The next prime is 1255780469. The reversal of 1255780463 is 3640875521.

It is not a de Polignac number, because 1255780463 - 2⁴ = 1255780447 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 1255780463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255780469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93248 + ... + 105861.

It is an arithmetic number, because the mean of its divisors is an integer number (96767460).

Almost surely, 2^1255780463 is an apocalyptic number.

1255780463 is a deficient number, since it is larger than the sum of its proper divisors (292498897).

1255780463 is a wasteful number, since it uses less digits than its factorization.

1255780463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199186.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 1255780463 is about 35436.9928605687. The cubic root of 1255780463 is about 1078.8752760087.

The spelling of 1255780463 in words is "one billion, two hundred fifty-five million, seven hundred eighty thousand, four hundred sixty-three".