25842675553 has 8 divisors (see below), whose sum is σ = 26150993960. Its totient is φ = 25536176640.

The previous prime is 25842675533. The next prime is 25842675563. The reversal of 25842675553 is 35557624852.

It can be written as a sum of positive squares in 4 ways, for example, as 1060674624 + 24782000929 = 32568^2 + 157423^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25842675553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25842675553.

It is not an unprimeable number, because it can be changed into a prime (25842675533) 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, 426288 + ... + 483121.

It is an arithmetic number, because the mean of its divisors is an integer number (3268874245).

Almost surely, 2^25842675553 is an apocalyptic number.

It is an amenable number.

25842675553 is a deficient number, since it is larger than the sum of its proper divisors (308318407).

25842675553 is a wasteful number, since it uses less digits than its factorization.

25842675553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909747.

The product of its digits is 10080000, while the sum is 52.

The spelling of 25842675553 in words is "twenty-five billion, eight hundred forty-two million, six hundred seventy-five thousand, five hundred fifty-three".