1255426245521 has 8 divisors (see below), whose sum is σ = 1434887249664. Its totient is φ = 1075993840800.

The previous prime is 1255426245517. The next prime is 1255426245529.

1255426245521 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255426245521 - 2² = 1255426245517 is a prime.

It is a super-2 number, since 2×1255426245521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255426245529) 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 7 ways as a sum of consecutive naturals, for example, 7055705 + ... + 7231446.

It is an arithmetic number, because the mean of its divisors is an integer number (179360906208).

Almost surely, 2^{1255426245521} is an apocalyptic number.

It is an amenable number.

1255426245521 is a deficient number, since it is larger than the sum of its proper divisors (179461004143).

1255426245521 is a wasteful number, since it uses less digits than its factorization.

1255426245521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14299711.

The product of its digits is 960000, while the sum is 44.

The spelling of 1255426245521 in words is "one trillion, two hundred fifty-five billion, four hundred twenty-six million, two hundred forty-five thousand, five hundred twenty-one".