258061055 has 16 divisors (see below), whose sum is σ = 355774464. Its totient is φ = 176025120.

The previous prime is 258061043. The next prime is 258061061. The reversal of 258061055 is 550160852.

It is not a de Polignac number, because 258061055 - 2⁶ = 258060991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 12617 + ... + 25986.

It is an arithmetic number, because the mean of its divisors is an integer number (22235904).

Almost surely, 2^258061055 is an apocalyptic number.

258061055 is a deficient number, since it is larger than the sum of its proper divisors (97713409).

258061055 is a wasteful number, since it uses less digits than its factorization.

258061055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38806.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 258061055 is about 16064.2788509164. The cubic root of 258061055 is about 636.6598893985.

The spelling of 258061055 in words is "two hundred fifty-eight million, sixty-one thousand, fifty-five".