25211650000 has 120 divisors (see below), whose sum is σ = 61230768480. Its totient is φ = 10055760000.

The previous prime is 25211649941. The next prime is 25211650007. The reversal of 25211650000 is 5611252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211650007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 29349571 + ... + 29350429.

It is an arithmetic number, because the mean of its divisors is an integer number (510256404).

Almost surely, 2^25211650000 is an apocalyptic number.

25211650000 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 25211650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30615384240).

25211650000 is an abundant number, since it is smaller than the sum of its proper divisors (36019118480).

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

25211650000 is an frugal number, since it uses more digits than its factorization.

25211650000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479 (or 1453 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 25211650000 in words is "twenty-five billion, two hundred eleven million, six hundred fifty thousand".