257253212 has 12 divisors (see below), whose sum is σ = 454564656. Its totient is φ = 127377600.

The previous prime is 257253211. The next prime is 257253223. The reversal of 257253212 is 212352752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257253211) 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, 311789 + ... + 312612.

It is an arithmetic number, because the mean of its divisors is an integer number (37880388).

Almost surely, 2^257253212 is an apocalyptic number.

It is an amenable number.

257253212 is a deficient number, since it is larger than the sum of its proper divisors (197311444).

257253212 is a wasteful number, since it uses less digits than its factorization.

257253212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624508 (or 624506 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 257253212 is about 16039.1150628705. The cubic root of 257253212 is about 635.9948544604.

The spelling of 257253212 in words is "two hundred fifty-seven million, two hundred fifty-three thousand, two hundred twelve".