25275274999992 has 128 divisors (see below), whose sum is σ = 70429697011200. Its totient is φ = 8398625875200.

The previous prime is 25275274999987. The next prime is 25275275000009. The reversal of 25275274999992 is 29999947257252.

25275274999992 is a `hidden beast` number, since 2 + 52 + 75 + 2 + 7 + 499 + 9 + 9 + 9 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 806959692 + ... + 806991012.

It is an arithmetic number, because the mean of its divisors is an integer number (550232007900).

Almost surely, 2^{25275274999992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25275274999992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35214848505600).

25275274999992 is an abundant number, since it is smaller than the sum of its proper divisors (45154422011208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25275274999992 is a wasteful number, since it uses less digits than its factorization.

25275274999992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42954 (or 42944 counting only the distinct ones).

The product of its digits is 4629441600, while the sum is 81.

The spelling of 25275274999992 in words is "twenty-five trillion, two hundred seventy-five billion, two hundred seventy-four million, nine hundred ninety-nine thousand, nine hundred ninety-two".