23217552 has 30 divisors (see below), whose sum is σ = 64977302. Its totient is φ = 7739136.

The previous prime is 23217533. The next prime is 23217559. The reversal of 23217552 is 25571232.

It can be written as a sum of positive squares in only one way, i.e., 22127616 + 1089936 = 4704^2 + 1044^2 .

It is not an unprimeable number, because it can be changed into a prime (23217559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80473 + ... + 80760.

Almost surely, 2^23217552 is an apocalyptic number.

It is an amenable number.

23217552 is an abundant number, since it is smaller than the sum of its proper divisors (41759750).

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

23217552 is a wasteful number, since it uses less digits than its factorization.

23217552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161247 (or 161238 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 23217552 is about 4818.4595048625. The cubic root of 23217552 is about 285.2805363245.

Adding to 23217552 its reverse (25571232), we get a palindrome (48788784).

The spelling of 23217552 in words is "twenty-three million, two hundred seventeen thousand, five hundred fifty-two".