23550166 has 4 divisors (see below), whose sum is σ = 35325252. Its totient is φ = 11775082.

The previous prime is 23550133. The next prime is 23550169. The reversal of 23550166 is 66105532.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×23550166² = 1109220637255112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23550169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5887540 + ... + 5887543.

It is an arithmetic number, because the mean of its divisors is an integer number (8831313).

Almost surely, 2^23550166 is an apocalyptic number.

23550166 is a deficient number, since it is larger than the sum of its proper divisors (11775086).

23550166 is a wasteful number, since it uses less digits than its factorization.

23550166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11775085.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 23550166 is about 4852.8513267975. The cubic root of 23550166 is about 286.6363891464.

Adding to 23550166 its reverse (66105532), we get a palindrome (89655698).

It can be divided in two parts, 23550 and 166, that added together give a square (23716 = 154²).

The spelling of 23550166 in words is "twenty-three million, five hundred fifty thousand, one hundred sixty-six".