258418509250 has 32 divisors (see below), whose sum is σ = 527737586688. Its totient is φ = 93970366000.

The previous prime is 258418509203. The next prime is 258418509281. The reversal of 258418509250 is 52905814852.

It is a junction number, because it is equal to n+sod(n) for n = 258418509194 and 258418509203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46982434 + ... + 46987933.

It is an arithmetic number, because the mean of its divisors is an integer number (16491799584).

Almost surely, 2^258418509250 is an apocalyptic number.

258418509250 is an abundant number, since it is smaller than the sum of its proper divisors (269319077438).

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

258418509250 is a wasteful number, since it uses less digits than its factorization.

258418509250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93970395 (or 93970385 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 49.

The spelling of 258418509250 in words is "two hundred fifty-eight billion, four hundred eighteen million, five hundred nine thousand, two hundred fifty".