258121852 has 6 divisors (see below), whose sum is σ = 451713248. Its totient is φ = 129060924.

The previous prime is 258121817. The next prime is 258121861.

It is a happy number.

258121852 is nontrivially palindromic in base 10.

258121852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32265228 + ... + 32265235.

Almost surely, 2^258121852 is an apocalyptic number.

It is an amenable number.

258121852 is a deficient number, since it is larger than the sum of its proper divisors (193591396).

258121852 is a wasteful number, since it uses less digits than its factorization.

258121852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64530467 (or 64530465 counting only the distinct ones).

The product of its digits is 12800, while the sum is 34.

The square root of 258121852 is about 16066.1710435312. The cubic root of 258121852 is about 636.7098826995.

The spelling of 258121852 in words is "two hundred fifty-eight million, one hundred twenty-one thousand, eight hundred fifty-two".