5257721395 has 8 divisors (see below), whose sum is σ = 6310871280. Its totient is φ = 4205106720.

The previous prime is 5257721383. The next prime is 5257721407. The reversal of 5257721395 is 5931277525.

It is an interprime number because it is at equal distance from previous prime (5257721383) and next prime (5257721407).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5257721395 - 2¹³ = 5257713203 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 111861 + ... + 151750.

It is an arithmetic number, because the mean of its divisors is an integer number (788858910).

Almost surely, 2^5257721395 is an apocalyptic number.

5257721395 is a deficient number, since it is larger than the sum of its proper divisors (1053149885).

5257721395 is a wasteful number, since it uses less digits than its factorization.

5257721395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267605.

The product of its digits is 661500, while the sum is 46.

The square root of 5257721395 is about 72510.1468416662. The cubic root of 5257721395 is about 1738.8649614073.

The spelling of 5257721395 in words is "five billion, two hundred fifty-seven million, seven hundred twenty-one thousand, three hundred ninety-five".