1555260383 has 2 divisors, whose sum is σ = 1555260384. Its totient is φ = 1555260382.

The previous prime is 1555260337. The next prime is 1555260397. The reversal of 1555260383 is 3830625551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1555260383 - 2⁶ = 1555260319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1555260313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777630191 + 777630192.

It is an arithmetic number, because the mean of its divisors is an integer number (777630192).

Almost surely, 2^1555260383 is an apocalyptic number.

1555260383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1555260383 is an equidigital number, since it uses as much as digits as its factorization.

1555260383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 1555260383 is about 39436.7897146814. The cubic root of 1555260383 is about 1158.6022559689.

The spelling of 1555260383 in words is "one billion, five hundred fifty-five million, two hundred sixty thousand, three hundred eighty-three".