252500257 has 8 divisors (see below), whose sum is σ = 260412416. Its totient is φ = 244680912.

The previous prime is 252500243. The next prime is 252500299. The reversal of 252500257 is 752005252.

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 252500257 - 2²³ = 244111649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252500207) 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 7 ways as a sum of consecutive naturals, for example, 17658 + ... + 28579.

It is an arithmetic number, because the mean of its divisors is an integer number (32551552).

Almost surely, 2^252500257 is an apocalyptic number.

It is an amenable number.

252500257 is a deficient number, since it is larger than the sum of its proper divisors (7912159).

252500257 is a wasteful number, since it uses less digits than its factorization.

252500257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46407.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 252500257 is about 15890.2566687892. The cubic root of 252500257 is about 632.0536468708.

The spelling of 252500257 in words is "two hundred fifty-two million, five hundred thousand, two hundred fifty-seven".