258025998 has 32 divisors (see below), whose sum is σ = 527829120. Its totient is φ = 84062880.

The previous prime is 258025993. The next prime is 258026003. The reversal of 258025998 is 899520852.

It is an interprime number because it is at equal distance from previous prime (258025993) and next prime (258026003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258025991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62061 + ... + 66087.

It is an arithmetic number, because the mean of its divisors is an integer number (16494660).

Almost surely, 2^258025998 is an apocalyptic number.

258025998 is an abundant number, since it is smaller than the sum of its proper divisors (269803122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258025998 is a wasteful number, since it uses less digits than its factorization.

258025998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 258025998 is about 16063.1876662137. The cubic root of 258025998 is about 636.6310584997.

The spelling of 258025998 in words is "two hundred fifty-eight million, twenty-five thousand, nine hundred ninety-eight".