5605642049 has 4 divisors (see below), whose sum is σ = 6406448064. Its totient is φ = 4804836036.

The previous prime is 5605642037. The next prime is 5605642051. The reversal of 5605642049 is 9402465065.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-5605642049 is a prime.

It is a super-3 number, since 3×5605642049³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5605641997 and 5605642015.

It is not an unprimeable number, because it can be changed into a prime (5605642019) 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, 400402997 + ... + 400403010.

It is an arithmetic number, because the mean of its divisors is an integer number (1601612016).

Almost surely, 2^5605642049 is an apocalyptic number.

It is an amenable number.

5605642049 is a deficient number, since it is larger than the sum of its proper divisors (800806015).

5605642049 is an equidigital number, since it uses as much as digits as its factorization.

5605642049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800806014.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5605642049 is about 74870.8357706791. The cubic root of 5605642049 is about 1776.4041840116.

The spelling of 5605642049 in words is "five billion, six hundred five million, six hundred forty-two thousand, forty-nine".