5221746509 has 4 divisors (see below), whose sum is σ = 5967710304. Its totient is φ = 4475782716.

The previous prime is 5221746449. The next prime is 5221746529. The reversal of 5221746509 is 9056471225.

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 5221746509 - 2⁸ = 5221746253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221746529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372981887 + ... + 372981900.

It is an arithmetic number, because the mean of its divisors is an integer number (1491927576).

Almost surely, 2^5221746509 is an apocalyptic number.

It is an amenable number.

5221746509 is a deficient number, since it is larger than the sum of its proper divisors (745963795).

5221746509 is an equidigital number, since it uses as much as digits as its factorization.

5221746509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745963794.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 5221746509 is about 72261.6531017662. The cubic root of 5221746509 is about 1734.8899385650.

The spelling of 5221746509 in words is "five billion, two hundred twenty-one million, seven hundred forty-six thousand, five hundred nine".