23001552 has 120 divisors (see below), whose sum is σ = 77504960. Its totient is φ = 6220800.

The previous prime is 23001551. The next prime is 23001613. The reversal of 23001552 is 25510032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18552 + ... + 19752.

Almost surely, 2^23001552 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 23001552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38752480).

23001552 is an abundant number, since it is smaller than the sum of its proper divisors (54503408).

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

23001552 is a wasteful number, since it uses less digits than its factorization.

23001552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 23001552 is about 4795.9933277685. The cubic root of 23001552 is about 284.3930944812.

Adding to 23001552 its reverse (25510032), we get a palindrome (48511584).

The spelling of 23001552 in words is "twenty-three million, one thousand, five hundred fifty-two".