252638752765 has 16 divisors (see below), whose sum is σ = 346766485248. Its totient is φ = 173092761216.

The previous prime is 252638752757. The next prime is 252638752831. The reversal of 252638752765 is 567257836252.

It is a cyclic number.

It is not a de Polignac number, because 252638752765 - 2³ = 252638752757 is a prime.

It is a Duffinian number.

It is a congruent 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, 2983497 + ... + 3067006.

It is an arithmetic number, because the mean of its divisors is an integer number (21672905328).

Almost surely, 2^252638752765 is an apocalyptic number.

It is an amenable number.

252638752765 is a deficient number, since it is larger than the sum of its proper divisors (94127732483).

252638752765 is a wasteful number, since it uses less digits than its factorization.

252638752765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051708.

The product of its digits is 42336000, while the sum is 58.

The spelling of 252638752765 in words is "two hundred fifty-two billion, six hundred thirty-eight million, seven hundred fifty-two thousand, seven hundred sixty-five".