252856005 has 32 divisors (see below), whose sum is σ = 420249600. Its totient is φ = 129728832.

The previous prime is 252856003. The next prime is 252856091. The reversal of 252856005 is 500658252.

It is not a de Polignac number, because 252856005 - 2¹ = 252856003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252856003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38556 + ... + 44634.

It is an arithmetic number, because the mean of its divisors is an integer number (13132800).

Almost surely, 2^252856005 is an apocalyptic number.

It is an amenable number.

252856005 is a deficient number, since it is larger than the sum of its proper divisors (167393595).

252856005 is a wasteful number, since it uses less digits than its factorization.

252856005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 252856005 is about 15901.4466323036. The cubic root of 252856005 is about 632.3503413613.

The spelling of 252856005 in words is "two hundred fifty-two million, eight hundred fifty-six thousand, five".