5249865271 has 4 divisors (see below), whose sum is σ = 5999846032. Its totient is φ = 4499884512.

The previous prime is 5249865223. The next prime is 5249865293. The reversal of 5249865271 is 1725689425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5249865271 - 2²³ = 5241476663 is a prime.

It is a super-2 number, since 2×5249865271² = 55122170727303806882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5249865211) 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, 374990370 + ... + 374990383.

It is an arithmetic number, because the mean of its divisors is an integer number (1499961508).

Almost surely, 2^5249865271 is an apocalyptic number.

5249865271 is a deficient number, since it is larger than the sum of its proper divisors (749980761).

5249865271 is an equidigital number, since it uses as much as digits as its factorization.

5249865271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749980760.

The product of its digits is 1209600, while the sum is 49.

The square root of 5249865271 is about 72455.9540065549. The cubic root of 5249865271 is about 1737.9984549639.

The spelling of 5249865271 in words is "five billion, two hundred forty-nine million, eight hundred sixty-five thousand, two hundred seventy-one".