23555493552 has 80 divisors (see below), whose sum is σ = 62011254240. Its totient is φ = 7702886400.

The previous prime is 23555493547. The next prime is 23555493581. The reversal of 23555493552 is 25539455532.

It is a super-2 number, since 2×23555493552² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128652 + ... + 1149332.

It is an arithmetic number, because the mean of its divisors is an integer number (775140678).

Almost surely, 2^23555493552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23555493552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31005627120).

23555493552 is an abundant number, since it is smaller than the sum of its proper divisors (38455760688).

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

23555493552 is a wasteful number, since it uses less digits than its factorization.

23555493552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21142 (or 21136 counting only the distinct ones).

The product of its digits is 4050000, while the sum is 48.

The spelling of 23555493552 in words is "twenty-three billion, five hundred fifty-five million, four hundred ninety-three thousand, five hundred fifty-two".