25544674891253 has 8 divisors (see below), whose sum is σ = 29193944727360. Its totient is φ = 21895412696640.

The previous prime is 25544674891231. The next prime is 25544674891283. The reversal of 25544674891253 is 35219847644552.

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

It is not a de Polignac number, because 25544674891253 - 2¹² = 25544674887157 is a prime.

It is a super-2 number, since 2×25544674891253² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25544674891253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25544674891223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12293198 + ... + 14220128.

It is an arithmetic number, because the mean of its divisors is an integer number (3649243090920).

Almost surely, 2^{25544674891253} is an apocalyptic number.

It is an amenable number.

25544674891253 is a deficient number, since it is larger than the sum of its proper divisors (3649269836107).

25544674891253 is a wasteful number, since it uses less digits than its factorization.

25544674891253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820747.

The product of its digits is 290304000, while the sum is 65.

The spelling of 25544674891253 in words is "twenty-five trillion, five hundred forty-four billion, six hundred seventy-four million, eight hundred ninety-one thousand, two hundred fifty-three".