25545026000 has 120 divisors (see below), whose sum is σ = 66885623064. Its totient is φ = 9431884800.

The previous prime is 25545025991. The next prime is 25545026011. The reversal of 25545026000 is 62054552.

It can be written as a sum of positive squares in 12 ways, for example, as 25511756176 + 33269824 = 159724^2 + 5768^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300212 + ... + 375788.

Almost surely, 2^25545026000 is an apocalyptic number.

25545026000 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 25545026000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33442811532).

25545026000 is an abundant number, since it is smaller than the sum of its proper divisors (41340597064).

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

25545026000 is a wasteful number, since it uses less digits than its factorization.

25545026000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75626 (or 75597 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 25545026000 in words is "twenty-five billion, five hundred forty-five million, twenty-six thousand".