1255354145251 has 4 divisors (see below), whose sum is σ = 1255480106272. Its totient is φ = 1255228184232.

The previous prime is 1255354145233. The next prime is 1255354145291. The reversal of 1255354145251 is 1525414535521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1255354145251 - 2¹¹ = 1255354143203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1255354145198 and 1255354145207.

It is not an unprimeable number, because it can be changed into a prime (1255354145231) 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 3 ways as a sum of consecutive naturals, for example, 62965560 + ... + 62985493.

It is an arithmetic number, because the mean of its divisors is an integer number (313870026568).

Almost surely, 2^{1255354145251} is an apocalyptic number.

1255354145251 is a deficient number, since it is larger than the sum of its proper divisors (125961021).

1255354145251 is an equidigital number, since it uses as much as digits as its factorization.

1255354145251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125961020.

The product of its digits is 600000, while the sum is 43.

The spelling of 1255354145251 in words is "one trillion, two hundred fifty-five billion, three hundred fifty-four million, one hundred forty-five thousand, two hundred fifty-one".