25144164243653 has 16 divisors (see below), whose sum is σ = 30951599271936. Its totient is φ = 19891110919680.

The previous prime is 25144164243643. The next prime is 25144164243673. The reversal of 25144164243653 is 35634246144152.

It is not a de Polignac number, because 25144164243653 - 2⁴ = 25144164243637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25144164243643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21460076 + ... + 22601397.

It is an arithmetic number, because the mean of its divisors is an integer number (1934474954496).

Almost surely, 2^{25144164243653} is an apocalyptic number.

It is an amenable number.

25144164243653 is a deficient number, since it is larger than the sum of its proper divisors (5807435028283).

25144164243653 is a wasteful number, since it uses less digits than its factorization.

25144164243653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44067764.

The product of its digits is 8294400, while the sum is 50.

The spelling of 25144164243653 in words is "twenty-five trillion, one hundred forty-four billion, one hundred sixty-four million, two hundred forty-three thousand, six hundred fifty-three".