5405227645 has 4 divisors (see below), whose sum is σ = 6486273180. Its totient is φ = 4324182112.

The previous prime is 5405227643. The next prime is 5405227679. The reversal of 5405227645 is 5467225045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5467225045 = 5 ⋅1093445009.

It can be written as a sum of positive squares in 2 ways, for example, as 2485122201 + 2920105444 = 49851^2 + 54038^2 .

It is a cyclic number.

It is not a de Polignac number, because 5405227645 - 2¹ = 5405227643 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 5405227598 and 5405227607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405227643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540522760 + ... + 540522769.

It is an arithmetic number, because the mean of its divisors is an integer number (1621568295).

Almost surely, 2^5405227645 is an apocalyptic number.

It is an amenable number.

5405227645 is a deficient number, since it is larger than the sum of its proper divisors (1081045535).

5405227645 is a wasteful number, since it uses less digits than its factorization.

5405227645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081045534.

The product of its (nonzero) digits is 336000, while the sum is 40.

The square root of 5405227645 is about 73520.2532979859. The cubic root of 5405227645 is about 1754.9765983628.

The spelling of 5405227645 in words is "five billion, four hundred five million, two hundred twenty-seven thousand, six hundred forty-five".