25266612000 has 576 divisors, whose sum is σ = 98060481792. Its totient is φ = 5571072000.

The previous prime is 25266611971. The next prime is 25266612001. The reversal of 25266612000 is 21666252.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (25266612001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 80723844 + ... + 80724156.

It is an arithmetic number, because the mean of its divisors is an integer number (170243892).

Almost surely, 2^25266612000 is an apocalyptic number.

25266612000 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 25266612000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49030240896).

25266612000 is an abundant number, since it is smaller than the sum of its proper divisors (72793869792).

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

25266612000 is a wasteful number, since it uses less digits than its factorization.

25266612000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 25266612000 in words is "twenty-five billion, two hundred sixty-six million, six hundred twelve thousand".