5245840405 has 16 divisors (see below), whose sum is σ = 6781065984. Its totient is φ = 3872808000.

The previous prime is 5245840357. The next prime is 5245840417. The reversal of 5245840405 is 5040485425.

It is not a de Polignac number, because 5245840405 - 2⁷ = 5245840277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300322 + ... + 317308.

It is an arithmetic number, because the mean of its divisors is an integer number (423816624).

Almost surely, 2^5245840405 is an apocalyptic number.

It is an amenable number.

5245840405 is a deficient number, since it is larger than the sum of its proper divisors (1535225579).

5245840405 is a wasteful number, since it uses less digits than its factorization.

5245840405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21756.

The product of its (nonzero) digits is 128000, while the sum is 37.

The square root of 5245840405 is about 72428.1741106318. The cubic root of 5245840405 is about 1737.5541896389.

It can be divided in two parts, 5245 and 840405, that added together give a triangular number (845650 = T₁₃₀₀).

The spelling of 5245840405 in words is "five billion, two hundred forty-five million, eight hundred forty thousand, four hundred five".