25495375228920 has 384 divisors, whose sum is σ = 85896965419200. Its totient is φ = 6554168524800.

The previous prime is 25495375228903. The next prime is 25495375229003. The reversal of 25495375228920 is 2982257359452.

It is a happy number.

25495375228920 is a `hidden beast` number, since 2 + 5 + 4 + 9 + 5 + 3 + 7 + 522 + 89 + 20 = 666.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2950507800 + ... + 2950516440.

Almost surely, 2^{25495375228920} is an apocalyptic number.

25495375228920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25495375228920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42948482709600).

25495375228920 is an abundant number, since it is smaller than the sum of its proper divisors (60401590190280).

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

25495375228920 is a wasteful number, since it uses less digits than its factorization.

25495375228920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391 (or 11384 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 63.

The spelling of 25495375228920 in words is "twenty-five trillion, four hundred ninety-five billion, three hundred seventy-five million, two hundred twenty-eight thousand, nine hundred twenty".