23123552550 has 384 divisors, whose sum is σ = 71803404288. Its totient is φ = 4809024000.

The previous prime is 23123552509. The next prime is 23123552561. The reversal of 23123552550 is 5525532132.

23123552550 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×23123552550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 50159320 + ... + 50159780.

It is an arithmetic number, because the mean of its divisors is an integer number (186988032).

Almost surely, 2^23123552550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23123552550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35901702144).

23123552550 is an abundant number, since it is smaller than the sum of its proper divisors (48679851738).

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

23123552550 is a wasteful number, since it uses less digits than its factorization.

23123552550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 23123552550 in words is "twenty-three billion, one hundred twenty-three million, five hundred fifty-two thousand, five hundred fifty".