55147169 has 16 divisors (see below), whose sum is σ = 71746560. Its totient is φ = 41102160.

The previous prime is 55147129. The next prime is 55147207. The reversal of 55147169 is 96174155.

55147169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55147169 - 2⁸ = 55146913 is a prime.

It is a super-2 number, since 2×55147169² = 6082420497429122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55147129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13799 + ... + 17340.

It is an arithmetic number, because the mean of its divisors is an integer number (4484160).

Almost surely, 2^55147169 is an apocalyptic number.

It is an amenable number.

55147169 is a deficient number, since it is larger than the sum of its proper divisors (16599391).

55147169 is a wasteful number, since it uses less digits than its factorization.

55147169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31180.

The product of its digits is 37800, while the sum is 38.

The square root of 55147169 is about 7426.1139905067. The cubic root of 55147169 is about 380.6341419896.

The spelling of 55147169 in words is "fifty-five million, one hundred forty-seven thousand, one hundred sixty-nine".