252566155 has 16 divisors (see below), whose sum is σ = 306949824. Its totient is φ = 199484800.

The previous prime is 252566143. The next prime is 252566177. The reversal of 252566155 is 551665252.

It is not a de Polignac number, because 252566155 - 2⁵ = 252566123 is a prime.

It is a super-3 number, since 3×252566155³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326349 + ... + 327121.

It is an arithmetic number, because the mean of its divisors is an integer number (19184364).

Almost surely, 2^252566155 is an apocalyptic number.

252566155 is a deficient number, since it is larger than the sum of its proper divisors (54383669).

252566155 is a wasteful number, since it uses less digits than its factorization.

252566155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526.

The product of its digits is 90000, while the sum is 37.

The square root of 252566155 is about 15892.3300683065. The cubic root of 252566155 is about 632.1086269447.

The spelling of 252566155 in words is "two hundred fifty-two million, five hundred sixty-six thousand, one hundred fifty-five".