155253055 has 8 divisors (see below), whose sum is σ = 187771392. Its totient is φ = 123223968.

The previous prime is 155253023. The next prime is 155253089. The reversal of 155253055 is 550352551.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 155253055 - 2⁵ = 155253023 is a prime.

It is a super-2 number, since 2×155253055² = 48207022173666050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121612 + ... + 122881.

It is an arithmetic number, because the mean of its divisors is an integer number (23471424).

Almost surely, 2^155253055 is an apocalyptic number.

155253055 is a deficient number, since it is larger than the sum of its proper divisors (32518337).

155253055 is a wasteful number, since it uses less digits than its factorization.

155253055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244625.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 155253055 is about 12460.0583867011. The cubic root of 155253055 is about 537.4607059791.

The spelling of 155253055 in words is "one hundred fifty-five million, two hundred fifty-three thousand, fifty-five".