252011155 has 32 divisors (see below), whose sum is σ = 348768000. Its totient is φ = 172886400.

The previous prime is 252011129. The next prime is 252011159. The reversal of 252011155 is 551110252.

It is a happy number.

It is not a de Polignac number, because 252011155 - 2⁹ = 252010643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252011159) 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, 364360 + ... + 365050.

It is an arithmetic number, because the mean of its divisors is an integer number (10899000).

Almost surely, 2^252011155 is an apocalyptic number.

252011155 is a deficient number, since it is larger than the sum of its proper divisors (96756845).

252011155 is a wasteful number, since it uses less digits than its factorization.

252011155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 252011155 is about 15874.8592119741. The cubic root of 252011155 is about 631.6452796005.

The spelling of 252011155 in words is "two hundred fifty-two million, eleven thousand, one hundred fifty-five".