55412145 has 12 divisors (see below), whose sum is σ = 96047796. Its totient is φ = 29553120.

The previous prime is 55412143. The next prime is 55412167. The reversal of 55412145 is 54121455.

55412145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27279729 + 28132416 = 5223^2 + 5304^2 .

It is not a de Polignac number, because 55412145 - 2¹ = 55412143 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55412143) 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 11 ways as a sum of consecutive naturals, for example, 615646 + ... + 615735.

It is an arithmetic number, because the mean of its divisors is an integer number (8003983).

Almost surely, 2^55412145 is an apocalyptic number.

It is an amenable number.

55412145 is a deficient number, since it is larger than the sum of its proper divisors (40635651).

55412145 is a wasteful number, since it uses less digits than its factorization.

55412145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231392 (or 1231389 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 55412145 is about 7443.9334360270. The cubic root of 55412145 is about 381.2428030532.

The spelling of 55412145 in words is "fifty-five million, four hundred twelve thousand, one hundred forty-five".