5455909 has 4 divisors (see below), whose sum is σ = 5603404. Its totient is φ = 5308416.

The previous prime is 5455897. The next prime is 5455913. The reversal of 5455909 is 9095545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9095545 = 5 ⋅1819109.

It can be written as a sum of positive squares in 2 ways, for example, as 5303809 + 152100 = 2303^2 + 390^2 .

It is a 8-Lehmer number, since φ(5455909) divides (5455909-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 5455909 - 2⁹ = 5455397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 147457 = 5455909 / (5 + 4 + 5 + 5 + 9 + 0 + 9).

It is an Ulam number.

It is a Duffinian number.

5455909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5455949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73692 + ... + 73765.

It is an arithmetic number, because the mean of its divisors is an integer number (1400851).

Almost surely, 2^5455909 is an apocalyptic number.

It is an amenable number.

5455909 is a deficient number, since it is larger than the sum of its proper divisors (147495).

5455909 is a wasteful number, since it uses less digits than its factorization.

5455909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147494.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 5455909 is about 2335.7887318848. The cubic root of 5455909 is about 176.0444640585.

The spelling of 5455909 in words is "five million, four hundred fifty-five thousand, nine hundred nine".