55101155 has 8 divisors (see below), whose sum is σ = 67528512. Its totient is φ = 43142848.

The previous prime is 55101139. The next prime is 55101161. The reversal of 55101155 is 55110155.

It is a happy number.

55101155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55101155 - 2⁴ = 55101139 is a prime.

It is a super-2 number, since 2×55101155² = 6072274564668050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55101155.

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, 117002 + ... + 117471.

It is an arithmetic number, because the mean of its divisors is an integer number (8441064).

Almost surely, 2^55101155 is an apocalyptic number.

55101155 is a deficient number, since it is larger than the sum of its proper divisors (12427357).

55101155 is a wasteful number, since it uses less digits than its factorization.

55101155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234525.

The product of its (nonzero) digits is 625, while the sum is 23.

The square root of 55101155 is about 7423.0152229401. The cubic root of 55101155 is about 380.5282473246.

The spelling of 55101155 in words is "fifty-five million, one hundred one thousand, one hundred fifty-five".