5251001065 has 16 divisors (see below), whose sum is σ = 6328343808. Its totient is φ = 4182748416.

The previous prime is 5251001027. The next prime is 5251001083. The reversal of 5251001065 is 5601001525.

It is a cyclic number.

It is not a de Polignac number, because 5251001065 - 2²⁹ = 4714130153 is a prime.

It is a super-2 number, since 2×5251001065² = 55146024369262268450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1208577 + ... + 1212913.

It is an arithmetic number, because the mean of its divisors is an integer number (395521488).

Almost surely, 2^5251001065 is an apocalyptic number.

It is an amenable number.

5251001065 is a deficient number, since it is larger than the sum of its proper divisors (1077342743).

5251001065 is a wasteful number, since it uses less digits than its factorization.

5251001065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 5251001065 is about 72463.7914064673. The cubic root of 5251001065 is about 1738.1237829977.

The spelling of 5251001065 in words is "five billion, two hundred fifty-one million, one thousand, sixty-five".