155010055 has 16 divisors (see below), whose sum is σ = 191347200. Its totient is φ = 120482208.

The previous prime is 155010049. The next prime is 155010059. The reversal of 155010055 is 550010551.

It is a cyclic number.

It is not a de Polignac number, because 155010055 - 2³ = 155010047 is a prime.

It is a super-2 number, since 2×155010055² = 48056234302206050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155010059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40974 + ... + 44596.

It is an arithmetic number, because the mean of its divisors is an integer number (11959200).

Almost surely, 2^155010055 is an apocalyptic number.

155010055 is a deficient number, since it is larger than the sum of its proper divisors (36337145).

155010055 is a wasteful number, since it uses less digits than its factorization.

155010055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3870.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 155010055 is about 12450.3034099575. The cubic root of 155010055 is about 537.1801507909.

The spelling of 155010055 in words is "one hundred fifty-five million, ten thousand, fifty-five".