258198855 has 16 divisors (see below), whose sum is σ = 417131520. Its totient is φ = 136368288.

The previous prime is 258198833. The next prime is 258198859. The reversal of 258198855 is 558891852.

It is not a de Polignac number, because 258198855 - 2⁵ = 258198823 is a prime.

It is a super-2 number, since 2×258198855² = 133333297446622050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258198798 and 258198807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258198859) 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 15 ways as a sum of consecutive naturals, for example, 82015 + ... + 85104.

It is an arithmetic number, because the mean of its divisors is an integer number (26070720).

Almost surely, 2^258198855 is an apocalyptic number.

258198855 is a deficient number, since it is larger than the sum of its proper divisors (158932665).

258198855 is a wasteful number, since it uses less digits than its factorization.

258198855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167230.

The product of its digits is 1152000, while the sum is 51.

The square root of 258198855 is about 16068.5672976778. The cubic root of 258198855 is about 636.7731909085.

The spelling of 258198855 in words is "two hundred fifty-eight million, one hundred ninety-eight thousand, eight hundred fifty-five".