155338555 has 8 divisors (see below), whose sum is σ = 187095744. Its totient is φ = 123811200.

The previous prime is 155338531. The next prime is 155338607. The reversal of 155338555 is 555833551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-155338555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55966 + ... + 58675.

It is an arithmetic number, because the mean of its divisors is an integer number (23386968).

Almost surely, 2^155338555 is an apocalyptic number.

155338555 is a deficient number, since it is larger than the sum of its proper divisors (31757189).

155338555 is a wasteful number, since it uses less digits than its factorization.

155338555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114917.

The product of its digits is 225000, while the sum is 40.

The square root of 155338555 is about 12463.4888775174. The cubic root of 155338555 is about 537.5593502158.

The spelling of 155338555 in words is "one hundred fifty-five million, three hundred thirty-eight thousand, five hundred fifty-five".