1555125343 has 2 divisors, whose sum is σ = 1555125344. Its totient is φ = 1555125342.

The previous prime is 1555125317. The next prime is 1555125347. The reversal of 1555125343 is 3435215551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1555125343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1555125299 and 1555125308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1555125347) 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, 777562671 + 777562672.

It is an arithmetic number, because the mean of its divisors is an integer number (777562672).

Almost surely, 2^1555125343 is an apocalyptic number.

1555125343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1555125343 is an equidigital number, since it uses as much as digits as its factorization.

1555125343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45000, while the sum is 34.

The square root of 1555125343 is about 39435.0775706096. The cubic root of 1555125343 is about 1158.5687219963.

The spelling of 1555125343 in words is "one billion, five hundred fifty-five million, one hundred twenty-five thousand, three hundred forty-three".