1555023241 has 2 divisors, whose sum is σ = 1555023242. Its totient is φ = 1555023240.

The previous prime is 1555023227. The next prime is 1555023329. The reversal of 1555023241 is 1423205551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1529983225 + 25040016 = 39115^2 + 5004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1555023241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1555021241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777511620 + 777511621.

It is an arithmetic number, because the mean of its divisors is an integer number (777511621).

Almost surely, 2^1555023241 is an apocalyptic number.

It is an amenable number.

1555023241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1555023241 is an equidigital number, since it uses as much as digits as its factorization.

1555023241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1555023241 is about 39433.7829912373. The cubic root of 1555023241 is about 1158.5433661039.

Adding to 1555023241 its reverse (1423205551), we get a palindrome (2978228792).

The spelling of 1555023241 in words is "one billion, five hundred fifty-five million, twenty-three thousand, two hundred forty-one".