25391055232080 has 800 divisors, whose sum is σ = 95825866752000. Its totient is φ = 6206216454144.

The previous prime is 25391055232073. The next prime is 25391055232129. The reversal of 25391055232080 is 8023255019352.

25391055232080 is a `hidden beast` number, since 2 + 5 + 3 + 9 + 10 + 552 + 3 + 2 + 0 + 80 = 666.

It is a super-2 number, since 2×25391055232080² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 159 ways as a sum of consecutive naturals, for example, 1653163441 + ... + 1653178799.

It is an arithmetic number, because the mean of its divisors is an integer number (119782333440).

Almost surely, 2^{25391055232080} is an apocalyptic number.

25391055232080 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 25391055232080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47912933376000).

25391055232080 is an abundant number, since it is smaller than the sum of its proper divisors (70434811519920).

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

25391055232080 is a wasteful number, since it uses less digits than its factorization.

25391055232080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15793 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 25391055232080 in words is "twenty-five trillion, three hundred ninety-one billion, fifty-five million, two hundred thirty-two thousand, eighty".