258023895 has 16 divisors (see below), whose sum is σ = 434567040. Its totient is φ = 130369824.

The previous prime is 258023891. The next prime is 258023897. The reversal of 258023895 is 598320852.

It is not a de Polignac number, because 258023895 - 2² = 258023891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258023891) 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, 452389 + ... + 452958.

It is an arithmetic number, because the mean of its divisors is an integer number (27160440).

Almost surely, 2^258023895 is an apocalyptic number.

258023895 is a deficient number, since it is larger than the sum of its proper divisors (176543145).

258023895 is a wasteful number, since it uses less digits than its factorization.

258023895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905374.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 258023895 is about 16063.1222058478. The cubic root of 258023895 is about 636.6293289081.

The spelling of 258023895 in words is "two hundred fifty-eight million, twenty-three thousand, eight hundred ninety-five".