5101278265 has 4 divisors (see below), whose sum is σ = 6121533924. Its totient is φ = 4081022608.

The previous prime is 5101278229. The next prime is 5101278331. The reversal of 5101278265 is 5628721015.

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 727704576 + 4373573689 = 26976^2 + 66133^2 .

It is a cyclic number.

It is not a de Polignac number, because 5101278265 - 2¹⁵ = 5101245497 is a prime.

It is a super-2 number, since 2×5101278265² = 52046079873922820450, 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 3 ways as a sum of consecutive naturals, for example, 510127822 + ... + 510127831.

It is an arithmetic number, because the mean of its divisors is an integer number (1530383481).

Almost surely, 2^5101278265 is an apocalyptic number.

It is an amenable number.

5101278265 is a deficient number, since it is larger than the sum of its proper divisors (1020255659).

5101278265 is a wasteful number, since it uses less digits than its factorization.

5101278265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020255658.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 5101278265 is about 71423.2333698216. The cubic root of 5101278265 is about 1721.4444177549. Note that the first 4 decimals are identical.

The spelling of 5101278265 in words is "five billion, one hundred one million, two hundred seventy-eight thousand, two hundred sixty-five".