1255404485851 has 2 divisors, whose sum is σ = 1255404485852. Its totient is φ = 1255404485850.

The previous prime is 1255404485789. The next prime is 1255404485903. The reversal of 1255404485851 is 1585844045521.

It is an a-pointer prime, because the next prime (1255404485903) can be obtained adding 1255404485851 to its sum of digits (52).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1255404485851 - 2¹³ = 1255404477659 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255404485051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627702242925 + 627702242926.

It is an arithmetic number, because the mean of its divisors is an integer number (627702242926).

Almost surely, 2^{1255404485851} is an apocalyptic number.

1255404485851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255404485851 is an equidigital number, since it uses as much as digits as its factorization.

1255404485851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120000, while the sum is 52.

The spelling of 1255404485851 in words is "one trillion, two hundred fifty-five billion, four hundred four million, four hundred eighty-five thousand, eight hundred fifty-one".