23520252400 has 60 divisors (see below), whose sum is σ = 56691765592. Its totient is φ = 9377406720.

The previous prime is 23520252397. The next prime is 23520252419. The reversal of 23520252400 is 425202532.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27034 + ... + 218566.

Almost surely, 2^23520252400 is an apocalyptic number.

23520252400 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 23520252400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28345882796).

23520252400 is an abundant number, since it is smaller than the sum of its proper divisors (33171513192).

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

23520252400 is a wasteful number, since it uses less digits than its factorization.

23520252400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191858 (or 191847 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 23520252400 its reverse (425202532), we get a palindrome (23945454932).

The spelling of 23520252400 in words is "twenty-three billion, five hundred twenty million, two hundred fifty-two thousand, four hundred".