5274785309 has 4 divisors (see below), whose sum is σ = 5347042716. Its totient is φ = 5202527904.

The previous prime is 5274785291. The next prime is 5274785387. The reversal of 5274785309 is 9035874725.

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 1587624025 + 3687161284 = 39845^2 + 60722^2 .

It is a cyclic number.

It is not a de Polignac number, because 5274785309 - 2⁸ = 5274785053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5274785389) 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, 36128594 + ... + 36128739.

It is an arithmetic number, because the mean of its divisors is an integer number (1336760679).

Almost surely, 2^5274785309 is an apocalyptic number.

It is an amenable number.

5274785309 is a deficient number, since it is larger than the sum of its proper divisors (72257407).

5274785309 is an equidigital number, since it uses as much as digits as its factorization.

5274785309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72257406.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The square root of 5274785309 is about 72627.7172228344. The cubic root of 5274785309 is about 1740.7440897557.

The spelling of 5274785309 in words is "five billion, two hundred seventy-four million, seven hundred eighty-five thousand, three hundred nine".