155505283 has 2 divisors, whose sum is σ = 155505284. Its totient is φ = 155505282.

The previous prime is 155505241. The next prime is 155505319. The reversal of 155505283 is 382505551.

It is a strong prime.

It is an emirp because it is prime and its reverse (382505551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155505283 - 2²¹ = 153408131 is a prime.

It is not a weakly prime, because it can be changed into another prime (155505583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77752641 + 77752642.

It is an arithmetic number, because the mean of its divisors is an integer number (77752642).

Almost surely, 2^155505283 is an apocalyptic number.

155505283 is a deficient number, since it is larger than the sum of its proper divisors (1).

155505283 is an equidigital number, since it uses as much as digits as its factorization.

155505283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 155505283 is about 12470.1757405419. The cubic root of 155505283 is about 537.7516058744.

The spelling of 155505283 in words is "one hundred fifty-five million, five hundred five thousand, two hundred eighty-three".