25257530505000 has 80 divisors (see below), whose sum is σ = 78904525344480. Its totient is φ = 6735341464000.

The previous prime is 25257530504939. The next prime is 25257530505043. The reversal of 25257530505000 is 50503575252.

It is a super-3 number, since 3×25257530505000³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 25257530505000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 841902684 + ... + 841932683.

It is an arithmetic number, because the mean of its divisors is an integer number (986306566806).

Almost surely, 2^{25257530505000} is an apocalyptic number.

25257530505000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25257530505000 is an abundant number, since it is smaller than the sum of its proper divisors (53646994839480).

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

25257530505000 is a wasteful number, since it uses less digits than its factorization.

25257530505000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683835396 (or 1683835377 counting only the distinct ones).

The product of its (nonzero) digits is 262500, while the sum is 39.

The spelling of 25257530505000 in words is "twenty-five trillion, two hundred fifty-seven billion, five hundred thirty million, five hundred five thousand".