1025535644053 has 4 divisors (see below), whose sum is σ = 1053252823660. Its totient is φ = 997818464448.

The previous prime is 1025535644051. The next prime is 1025535644083. The reversal of 1025535644053 is 3504465355201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 469708734609 + 555826909444 = 685353^2 + 745538^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025535644053 - 2¹ = 1025535644051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025535644051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13858589748 + ... + 13858589821.

It is an arithmetic number, because the mean of its divisors is an integer number (263313205915).

Almost surely, 2^{1025535644053} is an apocalyptic number.

It is an amenable number.

1025535644053 is a deficient number, since it is larger than the sum of its proper divisors (27717179607).

1025535644053 is an equidigital number, since it uses as much as digits as its factorization.

1025535644053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27717179606.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 1025535644053 in words is "one trillion, twenty-five billion, five hundred thirty-five million, six hundred forty-four thousand, fifty-three".