25623161200 has 240 divisors, whose sum is σ = 76020481600. Its totient is φ = 8082063360.

The previous prime is 25623161183. The next prime is 25623161219. The reversal of 25623161200 is 216132652.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12702592 + ... + 12704608.

Almost surely, 2^25623161200 is an apocalyptic number.

25623161200 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 25623161200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38010240800).

25623161200 is an abundant number, since it is smaller than the sum of its proper divisors (50397320400).

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

25623161200 is a wasteful number, since it uses less digits than its factorization.

25623161200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 25623161200 its reverse (216132652), we get a palindrome (25839293852).

The spelling of 25623161200 in words is "twenty-five billion, six hundred twenty-three million, one hundred sixty-one thousand, two hundred".