258325858 has 16 divisors (see below), whose sum is σ = 446909760. Its totient is φ = 109694736.

The previous prime is 258325853. The next prime is 258325861. The reversal of 258325858 is 858523852.

It is a super-2 number, since 2×258325858² = 133464497822872328, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (258325853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83116 + ... + 86167.

It is an arithmetic number, because the mean of its divisors is an integer number (27931860).

Almost surely, 2^258325858 is an apocalyptic number.

258325858 is a deficient number, since it is larger than the sum of its proper divisors (188583902).

258325858 is a wasteful number, since it uses less digits than its factorization.

258325858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169401.

The product of its digits is 768000, while the sum is 46.

The square root of 258325858 is about 16072.5187198522. The cubic root of 258325858 is about 636.8775792483.

It can be divided in two parts, 2583 and 25858, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 258325858 in words is "two hundred fifty-eight million, three hundred twenty-five thousand, eight hundred fifty-eight".