55167745 has 4 divisors (see below), whose sum is σ = 66201300. Its totient is φ = 44134192.

The previous prime is 55167743. The next prime is 55167751. The reversal of 55167745 is 54776155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7059649 + 48108096 = 2657^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 55167745 - 2¹ = 55167743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55167698 and 55167707.

It is not an unprimeable number, because it can be changed into a prime (55167743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5516770 + ... + 5516779.

It is an arithmetic number, because the mean of its divisors is an integer number (16550325).

Almost surely, 2^55167745 is an apocalyptic number.

It is an amenable number.

55167745 is a deficient number, since it is larger than the sum of its proper divisors (11033555).

55167745 is a wasteful number, since it uses less digits than its factorization.

55167745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11033554.

The product of its digits is 147000, while the sum is 40.

The square root of 55167745 is about 7427.4992426792. The cubic root of 55167745 is about 380.6814756629.

The spelling of 55167745 in words is "fifty-five million, one hundred sixty-seven thousand, seven hundred forty-five".