55113155 has 8 divisors (see below), whose sum is σ = 66337584. Its totient is φ = 43956000.

The previous prime is 55113119. The next prime is 55113181. The reversal of 55113155 is 55131155.

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

It is not a de Polignac number, because 55113155 - 2²⁰ = 54064579 is a prime.

It is a Duffinian 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, 14996 + ... + 18305.

It is an arithmetic number, because the mean of its divisors is an integer number (8292198).

Almost surely, 2^55113155 is an apocalyptic number.

55113155 is a deficient number, since it is larger than the sum of its proper divisors (11224429).

55113155 is a wasteful number, since it uses less digits than its factorization.

55113155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33637.

The product of its digits is 1875, while the sum is 26.

The square root of 55113155 is about 7423.8234758108. The cubic root of 55113155 is about 380.5558692956. Note that the first 3 decimals are identical.

The spelling of 55113155 in words is "fifty-five million, one hundred thirteen thousand, one hundred fifty-five".