252502571 has 4 divisors (see below), whose sum is σ = 265792200. Its totient is φ = 239212944.

The previous prime is 252502561. The next prime is 252502597. The reversal of 252502571 is 175205252.

252502571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252502571 is a prime.

It is a super-2 number, since 2×252502571² = 127515096723220082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252502511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6644786 + ... + 6644823.

It is an arithmetic number, because the mean of its divisors is an integer number (66448050).

Almost surely, 2^252502571 is an apocalyptic number.

252502571 is a deficient number, since it is larger than the sum of its proper divisors (13289629).

252502571 is a wasteful number, since it uses less digits than its factorization.

252502571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13289628.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 252502571 is about 15890.3294805363. The cubic root of 252502571 is about 632.0555776513.

The spelling of 252502571 in words is "two hundred fifty-two million, five hundred two thousand, five hundred seventy-one".