1555051252243 has 8 divisors (see below), whose sum is σ = 1593230975280. Its totient is φ = 1516883512320.

The previous prime is 1555051252213. The next prime is 1555051252297. The reversal of 1555051252243 is 3422521505551.

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

It is a cyclic number.

It is not a de Polignac number, because 1555051252243 - 2³⁷ = 1417612298771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555051252196 and 1555051252205.

It is not an unprimeable number, because it can be changed into a prime (1555051252213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732773 + ... + 3252406.

It is an arithmetic number, because the mean of its divisors is an integer number (199153871910).

Almost surely, 2^{1555051252243} is an apocalyptic number.

1555051252243 is a deficient number, since it is larger than the sum of its proper divisors (38179723037).

1555051252243 is an equidigital number, since it uses as much as digits as its factorization.

1555051252243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991557.

The product of its (nonzero) digits is 300000, while the sum is 40.

Adding to 1555051252243 its reverse (3422521505551), we get a palindrome (4977572757794).

The spelling of 1555051252243 in words is "one trillion, five hundred fifty-five billion, fifty-one million, two hundred fifty-two thousand, two hundred forty-three".