155452559 has 2 divisors, whose sum is σ = 155452560. Its totient is φ = 155452558.

The previous prime is 155452543. The next prime is 155452571. The reversal of 155452559 is 955254551.

It is a strong prime.

It is an emirp because it is prime and its reverse (955254551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155452559 - 2⁴ = 155452543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155452519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77726279 + 77726280.

It is an arithmetic number, because the mean of its divisors is an integer number (77726280).

Almost surely, 2^155452559 is an apocalyptic number.

155452559 is a deficient number, since it is larger than the sum of its proper divisors (1).

155452559 is an equidigital number, since it uses as much as digits as its factorization.

155452559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225000, while the sum is 41.

The square root of 155452559 is about 12468.0615574355. The cubic root of 155452559 is about 537.6908241868.

The spelling of 155452559 in words is "one hundred fifty-five million, four hundred fifty-two thousand, five hundred fifty-nine".