155051055 has 24 divisors (see below), whose sum is σ = 271999728. Its totient is φ = 81695616.

The previous prime is 155051041. The next prime is 155051063. The reversal of 155051055 is 550150551.

155051055 is a `hidden beast` number, since 1 + 550 + 5 + 105 + 5 = 666.

It is not a de Polignac number, because 155051055 - 2⁸ = 155050799 is a prime.

It is a super-2 number, since 2×155051055² = 48081659313226050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17022 + ... + 24491.

It is an arithmetic number, because the mean of its divisors is an integer number (11333322).

Almost surely, 2^155051055 is an apocalyptic number.

155051055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155051055 is a deficient number, since it is larger than the sum of its proper divisors (116948673).

155051055 is a wasteful number, since it uses less digits than its factorization.

155051055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41607 (or 41604 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 155051055 is about 12451.9498473131. The cubic root of 155051055 is about 537.2275078148.

The spelling of 155051055 in words is "one hundred fifty-five million, fifty-one thousand, fifty-five".