25235223200 has 144 divisors (see below), whose sum is σ = 67450120416. Its totient is φ = 9143116800.

The previous prime is 25235223119. The next prime is 25235223203. The reversal of 25235223200 is 232253252.

It is a self number, because there is not a number n which added to its sum of digits gives 25235223200.

It is not an unprimeable number, because it can be changed into a prime (25235223203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2485334 + ... + 2495466.

It is an arithmetic number, because the mean of its divisors is an integer number (468403614).

Almost surely, 2^25235223200 is an apocalyptic number.

25235223200 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 25235223200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33725060208).

25235223200 is an abundant number, since it is smaller than the sum of its proper divisors (42214897216).

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

25235223200 is a wasteful number, since it uses less digits than its factorization.

25235223200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447 (or 10434 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 25235223200 its reverse (232253252), we get a palindrome (25467476452).

The spelling of 25235223200 in words is "twenty-five billion, two hundred thirty-five million, two hundred twenty-three thousand, two hundred".