23553520536 has 192 divisors, whose sum is σ = 77158656000. Its totient is φ = 5846390784.

The previous prime is 23553520493. The next prime is 23553520547. The reversal of 23553520536 is 63502535532.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 23553520494 and 23553520503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 458265 + ... + 507063.

It is an arithmetic number, because the mean of its divisors is an integer number (401868000).

Almost surely, 2^23553520536 is an apocalyptic number.

23553520536 is a gapful number since it is divisible by the number (26) 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 23553520536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38579328000).

23553520536 is an abundant number, since it is smaller than the sum of its proper divisors (53605135464).

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

23553520536 is a wasteful number, since it uses less digits than its factorization.

23553520536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48858 (or 48841 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 39.

The spelling of 23553520536 in words is "twenty-three billion, five hundred fifty-three million, five hundred twenty thousand, five hundred thirty-six".