257252205 has 24 divisors (see below), whose sum is σ = 478805472. Its totient is φ = 117600672.

The previous prime is 257252201. The next prime is 257252221. The reversal of 257252205 is 502252752.

It is not a de Polignac number, because 257252205 - 2² = 257252201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257252201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174267 + ... + 175736.

It is an arithmetic number, because the mean of its divisors is an integer number (19950228).

Almost surely, 2^257252205 is an apocalyptic number.

It is an amenable number.

257252205 is a deficient number, since it is larger than the sum of its proper divisors (221553267).

257252205 is a wasteful number, since it uses less digits than its factorization.

257252205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350025 (or 350018 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 257252205 is about 16039.0836708336. The cubic root of 257252205 is about 635.9940246066.

The spelling of 257252205 in words is "two hundred fifty-seven million, two hundred fifty-two thousand, two hundred five".