252271565 has 32 divisors (see below), whose sum is σ = 381701376. Its totient is φ = 155773440.

The previous prime is 252271561. The next prime is 252271571. The reversal of 252271565 is 565172252.

It is not a de Polignac number, because 252271565 - 2² = 252271561 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252271561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11894 + ... + 25416.

It is an arithmetic number, because the mean of its divisors is an integer number (11928168).

Almost surely, 2^252271565 is an apocalyptic number.

It is an amenable number.

252271565 is a deficient number, since it is larger than the sum of its proper divisors (129429811).

252271565 is a wasteful number, since it uses less digits than its factorization.

252271565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589.

The product of its digits is 42000, while the sum is 35.

The square root of 252271565 is about 15883.0590567434. The cubic root of 252271565 is about 631.8627701365.

The spelling of 252271565 in words is "two hundred fifty-two million, two hundred seventy-one thousand, five hundred sixty-five".