25520520200 has 96 divisors (see below), whose sum is σ = 68001897600. Its totient is φ = 8725347840.

The previous prime is 25520520121. The next prime is 25520520211. The reversal of 25520520200 is 202502552.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477212 + ... + 527988.

It is an arithmetic number, because the mean of its divisors is an integer number (708353100).

Almost surely, 2^25520520200 is an apocalyptic number.

25520520200 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 25520520200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34000948800).

25520520200 is an abundant number, since it is smaller than the sum of its proper divisors (42481377400).

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

25520520200 is a wasteful number, since it uses less digits than its factorization.

25520520200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51159 (or 51150 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The spelling of 25520520200 in words is "twenty-five billion, five hundred twenty million, five hundred twenty thousand, two hundred".