5233778549 has 4 divisors (see below), whose sum is σ = 5322486720. Its totient is φ = 5145070380.

The previous prime is 5233778521. The next prime is 5233778587. The reversal of 5233778549 is 9458773325.

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 cyclic number.

It is not a de Polignac number, because 5233778549 - 2¹⁶ = 5233713013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5233778549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5233778149) 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, 44353997 + ... + 44354114.

It is an arithmetic number, because the mean of its divisors is an integer number (1330621680).

Almost surely, 2^5233778549 is an apocalyptic number.

5233778549 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

5233778549 is a deficient number, since it is larger than the sum of its proper divisors (88708171).

5233778549 is an equidigital number, since it uses as much as digits as its factorization.

5233778549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88708170.

The product of its digits is 6350400, while the sum is 53.

The square root of 5233778549 is about 72344.8584835163. The cubic root of 5233778549 is about 1736.2214376872.

The spelling of 5233778549 in words is "five billion, two hundred thirty-three million, seven hundred seventy-eight thousand, five hundred forty-nine".