1555052242 has 8 divisors (see below), whose sum is σ = 2332993932. Its totient is φ = 777387600.

The previous prime is 1555052231. The next prime is 1555052249. The reversal of 1555052242 is 2422505551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1450010241 + 105042001 = 38079^2 + 10249^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1555052249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54609 + ... + 78052.

Almost surely, 2^1555052242 is an apocalyptic number.

1555052242 is a deficient number, since it is larger than the sum of its proper divisors (777941690).

1555052242 is a wasteful number, since it uses less digits than its factorization.

1555052242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138524.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 1555052242 is about 39434.1507072233. The cubic root of 1555052242 is about 1158.5505682915.

Adding to 1555052242 its reverse (2422505551), we get a palindrome (3977557793).

The spelling of 1555052242 in words is "one billion, five hundred fifty-five million, fifty-two thousand, two hundred forty-two".