257482307 has 8 divisors (see below), whose sum is σ = 260230080. Its totient is φ = 254741760.

The previous prime is 257482283. The next prime is 257482327. The reversal of 257482307 is 703284752.

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 257482307 - 2¹⁸ = 257220163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257482327) 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, 98003 + ... + 100595.

It is an arithmetic number, because the mean of its divisors is an integer number (32528760).

Almost surely, 2^257482307 is an apocalyptic number.

257482307 is a deficient number, since it is larger than the sum of its proper divisors (2747773).

257482307 is a wasteful number, since it uses less digits than its factorization.

257482307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 257482307 is about 16046.2552329196. The cubic root of 257482307 is about 636.1835919949.

The spelling of 257482307 in words is "two hundred fifty-seven million, four hundred eighty-two thousand, three hundred seven".