55516155 has 8 divisors (see below), whose sum is σ = 88825872. Its totient is φ = 29608608.

The previous prime is 55516151. The next prime is 55516163. The reversal of 55516155 is 55161555.

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

It is not a de Polignac number, because 55516155 - 2² = 55516151 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55516151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850524 + ... + 1850553.

It is an arithmetic number, because the mean of its divisors is an integer number (11103234).

Almost surely, 2^55516155 is an apocalyptic number.

55516155 is a deficient number, since it is larger than the sum of its proper divisors (33309717).

55516155 is a wasteful number, since it uses less digits than its factorization.

55516155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701085.

The product of its digits is 18750, while the sum is 33.

The square root of 55516155 is about 7450.9163865930. The cubic root of 55516155 is about 381.4811880971.

The spelling of 55516155 in words is "fifty-five million, five hundred sixteen thousand, one hundred fifty-five".