1255430444001 has 4 divisors (see below), whose sum is σ = 1673907258672. Its totient is φ = 836953629332.

The previous prime is 1255430443979. The next prime is 1255430444003. The reversal of 1255430444001 is 1004440345521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1255430444001 - 2¹⁴ = 1255430427617 is a prime.

It is a super-2 number, since 2×1255430444001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1255430444003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209238407331 + ... + 209238407336.

It is an arithmetic number, because the mean of its divisors is an integer number (418476814668).

Almost surely, 2^{1255430444001} is an apocalyptic number.

It is an amenable number.

1255430444001 is a deficient number, since it is larger than the sum of its proper divisors (418476814671).

1255430444001 is an equidigital number, since it uses as much as digits as its factorization.

1255430444001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418476814670.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 1255430444001 its reverse (1004440345521), we get a palindrome (2259870789522).

The spelling of 1255430444001 in words is "one trillion, two hundred fifty-five billion, four hundred thirty million, four hundred forty-four thousand, one".