252995665 has 16 divisors (see below), whose sum is σ = 328608000. Its totient is φ = 185879232.

The previous prime is 252995663. The next prime is 252995671. The reversal of 252995665 is 566599252.

It is a cyclic number.

It is not a de Polignac number, because 252995665 - 2¹ = 252995663 is a prime.

It is a super-3 number, since 3×252995665³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (252995663) 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, 3156 + ... + 22714.

It is an arithmetic number, because the mean of its divisors is an integer number (20538000).

Almost surely, 2^252995665 is an apocalyptic number.

It is an amenable number.

252995665 is a deficient number, since it is larger than the sum of its proper divisors (75612335).

252995665 is a wasteful number, since it uses less digits than its factorization.

252995665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776.

The product of its digits is 1458000, while the sum is 49.

The square root of 252995665 is about 15905.8374504457. The cubic root of 252995665 is about 632.4667419904.

The spelling of 252995665 in words is "two hundred fifty-two million, nine hundred ninety-five thousand, six hundred sixty-five".