252765137765 has 16 divisors (see below), whose sum is σ = 347449928448. Its totient is φ = 172924367616.

The previous prime is 252765137753. The next prime is 252765137767. The reversal of 252765137765 is 567731567252.

It is not a de Polignac number, because 252765137765 - 2⁶ = 252765137701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252765137765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252765137767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8324177 + ... + 8354486.

It is an arithmetic number, because the mean of its divisors is an integer number (21715620528).

Almost surely, 2^252765137765 is an apocalyptic number.

It is an amenable number.

252765137765 is a deficient number, since it is larger than the sum of its proper divisors (94684790683).

252765137765 is a wasteful number, since it uses less digits than its factorization.

252765137765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16679108.

The product of its digits is 18522000, while the sum is 56.

The spelling of 252765137765 in words is "two hundred fifty-two billion, seven hundred sixty-five million, one hundred thirty-seven thousand, seven hundred sixty-five".