23223550 has 36 divisors (see below), whose sum is σ = 50253480. Its totient is φ = 7961520.

The previous prime is 23223527. The next prime is 23223553. The reversal of 23223550 is 5532232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223553) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2290 + ... + 7189.

It is an arithmetic number, because the mean of its divisors is an integer number (1395930).

Almost surely, 2^23223550 is an apocalyptic number.

23223550 is an abundant number, since it is smaller than the sum of its proper divisors (27029930).

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

23223550 is a wasteful number, since it uses less digits than its factorization.

23223550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9505 (or 9493 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23223550 is about 4819.0818627618. The cubic root of 23223550 is about 285.3051005756.

Adding to 23223550 its reverse (5532232), we get a palindrome (28755782).

The spelling of 23223550 in words is "twenty-three million, two hundred twenty-three thousand, five hundred fifty".