258061266 has 12 divisors (see below), whose sum is σ = 559132782. Its totient is φ = 86020416.

The previous prime is 258061261. The next prime is 258061277. The reversal of 258061266 is 662160852.

258061266 is a `hidden beast` number, since 2 + 580 + 6 + 12 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 204347025 + 53714241 = 14295^2 + 7329^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 258061266.

It is not an unprimeable number, because it can be changed into a prime (258061261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7168351 + ... + 7168386.

Almost surely, 2^258061266 is an apocalyptic number.

258061266 is an abundant number, since it is smaller than the sum of its proper divisors (301071516).

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

258061266 is a wasteful number, since it uses less digits than its factorization.

258061266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14336745 (or 14336742 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 258061266 is about 16064.2854182811. The cubic root of 258061266 is about 636.6600629171.

It can be divided in two parts, 25806 and 1266, that added together give a palindrome (27072).

The spelling of 258061266 in words is "two hundred fifty-eight million, sixty-one thousand, two hundred sixty-six".