155050005 has 24 divisors (see below), whose sum is σ = 272686176. Its totient is φ = 75174880.

The previous prime is 155049989. The next prime is 155050009. The reversal of 155050005 is 500050551.

It is not a de Polignac number, because 155050005 - 2⁴ = 155049989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155050009) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 40899 + ... + 44528.

It is an arithmetic number, because the mean of its divisors is an integer number (11361924).

Almost surely, 2^155050005 is an apocalyptic number.

155050005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155050005 is a deficient number, since it is larger than the sum of its proper divisors (117636171).

155050005 is a wasteful number, since it uses less digits than its factorization.

155050005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85457 (or 85446 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 155050005 is about 12451.9076851702. The cubic root of 155050005 is about 537.2262951172.

The spelling of 155050005 in words is "one hundred fifty-five million, fifty thousand, five".