257980483 has 2 divisors, whose sum is σ = 257980484. Its totient is φ = 257980482.

The previous prime is 257980477. The next prime is 257980493. The reversal of 257980483 is 384089752.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257980483 is a prime.

It is not a weakly prime, because it can be changed into another prime (257980493) 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 as a sum of consecutive naturals, namely, 128990241 + 128990242.

It is an arithmetic number, because the mean of its divisors is an integer number (128990242).

Almost surely, 2^257980483 is an apocalyptic number.

257980483 is a deficient number, since it is larger than the sum of its proper divisors (1).

257980483 is an equidigital number, since it uses as much as digits as its factorization.

257980483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 257980483 is about 16061.7708550458. The cubic root of 257980483 is about 636.5936230386.

The spelling of 257980483 in words is "two hundred fifty-seven million, nine hundred eighty thousand, four hundred eighty-three".