55168145 has 16 divisors (see below), whose sum is σ = 73146240. Its totient is φ = 39730944.

The previous prime is 55168133. The next prime is 55168171. The reversal of 55168145 is 54186155.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55168145 - 2⁴ = 55168129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12155 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (4571640).

Almost surely, 2^55168145 is an apocalyptic number.

It is an amenable number.

55168145 is a deficient number, since it is larger than the sum of its proper divisors (17978095).

55168145 is a wasteful number, since it uses less digits than its factorization.

55168145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28264.

The product of its digits is 24000, while the sum is 35.

The square root of 55168145 is about 7427.5261695937. The cubic root of 55168145 is about 380.6823957188.

The spelling of 55168145 in words is "fifty-five million, one hundred sixty-eight thousand, one hundred forty-five".