23555332500 has 240 divisors, whose sum is σ = 78756289920. Its totient is φ = 5366016000.

The previous prime is 23555332483. The next prime is 23555332501. The reversal of 23555332500 is 523355532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23555332501) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21471952 + ... + 21473048.

It is an arithmetic number, because the mean of its divisors is an integer number (328151208).

Almost surely, 2^23555332500 is an apocalyptic number.

23555332500 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 23555332500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39378144960).

23555332500 is an abundant number, since it is smaller than the sum of its proper divisors (55200957420).

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

23555332500 is a wasteful number, since it uses less digits than its factorization.

23555332500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 33.

The spelling of 23555332500 in words is "twenty-three billion, five hundred fifty-five million, three hundred thirty-two thousand, five hundred".