258939425522 has 18 divisors (see below), whose sum is σ = 389903426829. Its totient is φ = 128973522360.

The previous prime is 258939425509. The next prime is 258939425531. The reversal of 258939425522 is 225524939852.

It can be written as a sum of positive squares in 2 ways, for example, as 243886834801 + 15052590721 = 493849^2 + 122689^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=359819.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 251153147 + ... + 251154177.

Almost surely, 2^258939425522 is an apocalyptic number.

258939425522 is a deficient number, since it is larger than the sum of its proper divisors (130964001307).

258939425522 is an frugal number, since it uses more digits than its factorization.

258939425522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 1382 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 56.

The spelling of 258939425522 in words is "two hundred fifty-eight billion, nine hundred thirty-nine million, four hundred twenty-five thousand, five hundred twenty-two".