23553355540 has 192 divisors, whose sum is σ = 59609426688. Its totient is φ = 7704576000.

The previous prime is 23553355513. The next prime is 23553355541. The reversal of 23553355540 is 4555335532.

It is a junction number, because it is equal to n+sod(n) for n = 23553355493 and 23553355502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23553355541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19353012 + ... + 19354228.

It is an arithmetic number, because the mean of its divisors is an integer number (310465764).

Almost surely, 2^23553355540 is an apocalyptic number.

23553355540 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 23553355540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29804713344).

23553355540 is an abundant number, since it is smaller than the sum of its proper divisors (36056071148).

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

23553355540 is a wasteful number, since it uses less digits than its factorization.

23553355540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 40.

The spelling of 23553355540 in words is "twenty-three billion, five hundred fifty-three million, three hundred fifty-five thousand, five hundred forty".