258515778252 has 48 divisors (see below), whose sum is σ = 611369972192. Its totient is φ = 85010964480.

The previous prime is 258515778251. The next prime is 258515778253. The reversal of 258515778252 is 252877515852.

It is an interprime number because it is at equal distance from previous prime (258515778251) and next prime (258515778253).

It is a junction number, because it is equal to n+sod(n) for n = 258515778192 and 258515778201.

It is not an unprimeable number, because it can be changed into a prime (258515778251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9552 + ... + 719112.

Almost surely, 2^258515778252 is an apocalyptic number.

It is an amenable number.

258515778252 is an abundant number, since it is smaller than the sum of its proper divisors (352854193940).

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

258515778252 is a wasteful number, since it uses less digits than its factorization.

258515778252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709978 (or 709976 counting only the distinct ones).

The product of its digits is 15680000, while the sum is 57.

The spelling of 258515778252 in words is "two hundred fifty-eight billion, five hundred fifteen million, seven hundred seventy-eight thousand, two hundred fifty-two".