258252775508 has 36 divisors (see below), whose sum is σ = 559293003360. Its totient is φ = 102165931296.

The previous prime is 258252775493. The next prime is 258252775513. The reversal of 258252775508 is 805577252852.

It is a happy number.

258252775508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27283178 + ... + 27292641.

It is an arithmetic number, because the mean of its divisors is an integer number (15535916760).

Almost surely, 2^258252775508 is an apocalyptic number.

258252775508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

258252775508 is an abundant number, since it is smaller than the sum of its proper divisors (301040227852).

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

258252775508 is a wasteful number, since it uses less digits than its factorization.

258252775508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54575856 (or 54575841 counting only the distinct ones).

The product of its (nonzero) digits is 15680000, while the sum is 56.

The spelling of 258252775508 in words is "two hundred fifty-eight billion, two hundred fifty-two million, seven hundred seventy-five thousand, five hundred eight".