25878180305025 has 72 divisors (see below), whose sum is σ = 47227861062720. Its totient is φ = 13540534600320.

The previous prime is 25878180305023. The next prime is 25878180305053. The reversal of 25878180305025 is 52050308187852.

25878180305025 is a `hidden beast` number, since 2 + 58 + 7 + 8 + 1 + 80 + 3 + 0 + 502 + 5 = 666.

It is not a de Polignac number, because 25878180305025 - 2¹ = 25878180305023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25878180305023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 262622716 + ... + 262721234.

It is an arithmetic number, because the mean of its divisors is an integer number (655942514760).

Almost surely, 2^{25878180305025} is an apocalyptic number.

25878180305025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25878180305025 is a deficient number, since it is larger than the sum of its proper divisors (21349680757695).

25878180305025 is a wasteful number, since it uses less digits than its factorization.

25878180305025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120615 (or 120607 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 54.

The spelling of 25878180305025 in words is "twenty-five trillion, eight hundred seventy-eight billion, one hundred eighty million, three hundred five thousand, twenty-five".