5440555405 has 4 divisors (see below), whose sum is σ = 6528666492. Its totient is φ = 4352444320.

The previous prime is 5440555403. The next prime is 5440555427. The reversal of 5440555405 is 5045550445.

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 3250596196 + 2189959209 = 57014^2 + 46797^2 .

It is not a de Polignac number, because 5440555405 - 2¹ = 5440555403 is a prime.

It is a super-2 number, since 2×5440555405² = 59199286229749428050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440555403) 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, 544055536 + ... + 544055545.

It is an arithmetic number, because the mean of its divisors is an integer number (1632166623).

Almost surely, 2^5440555405 is an apocalyptic number.

It is an amenable number.

5440555405 is a deficient number, since it is larger than the sum of its proper divisors (1088111087).

5440555405 is a wasteful number, since it uses less digits than its factorization.

5440555405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088111086.

The product of its (nonzero) digits is 200000, while the sum is 37.

The square root of 5440555405 is about 73760.1206954002. The cubic root of 5440555405 is about 1758.7917202868.

The spelling of 5440555405 in words is "five billion, four hundred forty million, five hundred fifty-five thousand, four hundred five".