1253827552603 has 4 divisors (see below), whose sum is σ = 1253882758968. Its totient is φ = 1253772346240.

The previous prime is 1253827552459. The next prime is 1253827552613. The reversal of 1253827552603 is 3062557283521.

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 1253827552603 - 2⁹ = 1253827552091 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253827552613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27569101 + ... + 27614542.

It is an arithmetic number, because the mean of its divisors is an integer number (313470689742).

Almost surely, 2^{1253827552603} is an apocalyptic number.

1253827552603 is a deficient number, since it is larger than the sum of its proper divisors (55206365).

1253827552603 is an equidigital number, since it uses as much as digits as its factorization.

1253827552603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55206364.

The product of its (nonzero) digits is 3024000, while the sum is 49.

The spelling of 1253827552603 in words is "one trillion, two hundred fifty-three billion, eight hundred twenty-seven million, five hundred fifty-two thousand, six hundred three".