258005783 has 16 divisors (see below), whose sum is σ = 302552064. Its totient is φ = 215451360.

The previous prime is 258005747. The next prime is 258005791. The reversal of 258005783 is 387500852.

It is a cyclic number.

It is not a de Polignac number, because 258005783 - 2¹⁶ = 257940247 is a prime.

It is a super-2 number, since 2×258005783² = 133133968122886178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258004783) 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, 42866 + ... + 48512.

It is an arithmetic number, because the mean of its divisors is an integer number (18909504).

Almost surely, 2^258005783 is an apocalyptic number.

258005783 is a deficient number, since it is larger than the sum of its proper divisors (44546281).

258005783 is a wasteful number, since it uses less digits than its factorization.

258005783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 258005783 is about 16062.5584201272. The cubic root of 258005783 is about 636.6144324839.

The spelling of 258005783 in words is "two hundred fifty-eight million, five thousand, seven hundred eighty-three".