1553042242 has 8 divisors (see below), whose sum is σ = 2466596556. Its totient is φ = 730843392.

The previous prime is 1553042219. The next prime is 1553042251. The reversal of 1553042242 is 2422403551.

It can be written as a sum of positive squares in 2 ways, for example, as 1200691801 + 352350441 = 34651^2 + 18771^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1553042242.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 22838823 + ... + 22838890.

Almost surely, 2^1553042242 is an apocalyptic number.

1553042242 is a deficient number, since it is larger than the sum of its proper divisors (913554314).

1553042242 is a wasteful number, since it uses less digits than its factorization.

1553042242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45677732.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1553042242 is about 39408.6569423521. The cubic root of 1553042242 is about 1158.0511872796.

Adding to 1553042242 its reverse (2422403551), we get a palindrome (3975445793).

The spelling of 1553042242 in words is "one billion, five hundred fifty-three million, forty-two thousand, two hundred forty-two".