23553440242 has 8 divisors (see below), whose sum is σ = 36285029676. Its totient is φ = 11458430352.

The previous prime is 23553440233. The next prime is 23553440263. The reversal of 23553440242 is 24204435532.

It can be written as a sum of positive squares in 2 ways, for example, as 23287065201 + 266375041 = 152601^2 + 16321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23553440198 and 23553440207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159144793 + ... + 159144940.

Almost surely, 2^23553440242 is an apocalyptic number.

23553440242 is a deficient number, since it is larger than the sum of its proper divisors (12731589434).

23553440242 is a wasteful number, since it uses less digits than its factorization.

23553440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318289772.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 23553440242 its reverse (24204435532), we get a palindrome (47757875774).

The spelling of 23553440242 in words is "twenty-three billion, five hundred fifty-three million, four hundred forty thousand, two hundred forty-two".