257224273 has 8 divisors (see below), whose sum is σ = 259859808. Its totient is φ = 254595264.

The previous prime is 257224243. The next prime is 257224277. The reversal of 257224273 is 372422752.

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 257224273 - 2⁹ = 257223761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257224277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125886 + ... + 127912.

It is an arithmetic number, because the mean of its divisors is an integer number (32482476).

Almost surely, 2^257224273 is an apocalyptic number.

It is an amenable number.

257224273 is a deficient number, since it is larger than the sum of its proper divisors (2635535).

257224273 is a wasteful number, since it uses less digits than its factorization.

257224273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263.

The product of its digits is 47040, while the sum is 34.

The square root of 257224273 is about 16038.2128991980. The cubic root of 257224273 is about 635.9710053960.

The spelling of 257224273 in words is "two hundred fifty-seven million, two hundred twenty-four thousand, two hundred seventy-three".