252730155 has 8 divisors (see below), whose sum is σ = 404368272. Its totient is φ = 134789408.

The previous prime is 252730147. The next prime is 252730169. The reversal of 252730155 is 551037252.

252730155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252730155 - 2³ = 252730147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8424324 + ... + 8424353.

It is an arithmetic number, because the mean of its divisors is an integer number (50546034).

Almost surely, 2^252730155 is an apocalyptic number.

252730155 is a deficient number, since it is larger than the sum of its proper divisors (151638117).

252730155 is a wasteful number, since it uses less digits than its factorization.

252730155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16848685.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 252730155 is about 15897.4889526617. The cubic root of 252730155 is about 632.2454140569.

The spelling of 252730155 in words is "two hundred fifty-two million, seven hundred thirty thousand, one hundred fifty-five".