258920023 has 2 divisors, whose sum is σ = 258920024. Its totient is φ = 258920022.

The previous prime is 258919981. The next prime is 258920027. The reversal of 258920023 is 320029852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258920023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258920027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129460011 + 129460012.

It is an arithmetic number, because the mean of its divisors is an integer number (129460012).

Almost surely, 2^258920023 is an apocalyptic number.

258920023 is a deficient number, since it is larger than the sum of its proper divisors (1).

258920023 is an equidigital number, since it uses as much as digits as its factorization.

258920023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 258920023 is about 16090.9919830941. The cubic root of 258920023 is about 637.3654909344.

Adding to 258920023 its reverse (320029852), we get a palindrome (578949875).

The spelling of 258920023 in words is "two hundred fifty-eight million, nine hundred twenty thousand, twenty-three".