23312554 has 4 divisors (see below), whose sum is σ = 34968834. Its totient is φ = 11656276.

The previous prime is 23312543. The next prime is 23312557. The reversal of 23312554 is 45521332.

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

It can be written as a sum of positive squares in only one way, i.e., 19404025 + 3908529 = 4405^2 + 1977^2 .

It is not an unprimeable number, because it can be changed into a prime (23312557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828137 + ... + 5828140.

Almost surely, 2^23312554 is an apocalyptic number.

23312554 is a deficient number, since it is larger than the sum of its proper divisors (11656280).

23312554 is a wasteful number, since it uses less digits than its factorization.

23312554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656279.

The product of its digits is 3600, while the sum is 25.

The square root of 23312554 is about 4828.3075709818. The cubic root of 23312554 is about 285.6691121676.

Adding to 23312554 its reverse (45521332), we get a palindrome (68833886).

The spelling of 23312554 in words is "twenty-three million, three hundred twelve thousand, five hundred fifty-four".