25954491200 has 168 divisors, whose sum is σ = 69785057280. Its totient is φ = 9422438400.

The previous prime is 25954491191. The next prime is 25954491203. The reversal of 25954491200 is 219445952.

It is a super-2 number, since 2×25954491200² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25954491203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20292161 + ... + 20293439.

Almost surely, 2^25954491200 is an apocalyptic number.

25954491200 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 25954491200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34892528640).

25954491200 is an abundant number, since it is smaller than the sum of its proper divisors (43830566080).

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

25954491200 is a wasteful number, since it uses less digits than its factorization.

25954491200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2450 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 25954491200 in words is "twenty-five billion, nine hundred fifty-four million, four hundred ninety-one thousand, two hundred".