258485983 has 16 divisors (see below), whose sum is σ = 310533120. Its totient is φ = 210361536.

The previous prime is 258485971. The next prime is 258485989. The reversal of 258485983 is 389584852.

It is a de Polignac number, because none of the positive numbers 2^k-258485983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258485983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258485989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16198 + ... + 27916.

It is an arithmetic number, because the mean of its divisors is an integer number (19408320).

Almost surely, 2^258485983 is an apocalyptic number.

258485983 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

258485983 is a deficient number, since it is larger than the sum of its proper divisors (52047137).

258485983 is a wasteful number, since it uses less digits than its factorization.

258485983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11886.

The product of its digits is 2764800, while the sum is 52.

The square root of 258485983 is about 16077.4992769398. The cubic root of 258485983 is about 637.0091430019.

The spelling of 258485983 in words is "two hundred fifty-eight million, four hundred eighty-five thousand, nine hundred eighty-three".