25487673500 has 192 divisors, whose sum is σ = 60232273920. Its totient is φ = 9392198400.

The previous prime is 25487673461. The next prime is 25487673511. The reversal of 25487673500 is 537678452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112280387 + ... + 112280613.

It is an arithmetic number, because the mean of its divisors is an integer number (313709760).

Almost surely, 2^25487673500 is an apocalyptic number.

25487673500 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 25487673500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30116136960).

25487673500 is an abundant number, since it is smaller than the sum of its proper divisors (34744600420).

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

25487673500 is a wasteful number, since it uses less digits than its factorization.

25487673500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 25487673500 in words is "twenty-five billion, four hundred eighty-seven million, six hundred seventy-three thousand, five hundred".