23135552 has 56 divisors (see below), whose sum is σ = 51023520. Its totient is φ = 10319360.

The previous prime is 23135543. The next prime is 23135557. The reversal of 23135552 is 25553132.

It is a super-3 number, since 3×23135552³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41258 + ... + 41814.

Almost surely, 2^23135552 is an apocalyptic number.

23135552 is a gapful number since it is divisible by the number (22) 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 23135552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25511760).

23135552 is an abundant number, since it is smaller than the sum of its proper divisors (27887968).

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

23135552 is a wasteful number, since it uses less digits than its factorization.

23135552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 629 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 23135552 is about 4809.9430350057. The cubic root of 23135552 is about 284.9442878686.

Adding to 23135552 its reverse (25553132), we get a palindrome (48688684).

The spelling of 23135552 in words is "twenty-three million, one hundred thirty-five thousand, five hundred fifty-two".