258157875250 has 128 divisors (see below), whose sum is σ = 545818051584. Its totient is φ = 90616320000.

The previous prime is 258157875233. The next prime is 258157875257. The reversal of 258157875250 is 52578751852.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 258157875191 and 258157875200.

It is not an unprimeable number, because it can be changed into a prime (258157875257) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9421570 + ... + 9448930.

It is an arithmetic number, because the mean of its divisors is an integer number (4264203528).

Almost surely, 2^258157875250 is an apocalyptic number.

258157875250 is an abundant number, since it is smaller than the sum of its proper divisors (287660176334).

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

258157875250 is a wasteful number, since it uses less digits than its factorization.

258157875250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27509 (or 27499 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 55.

The spelling of 258157875250 in words is "two hundred fifty-eight billion, one hundred fifty-seven million, eight hundred seventy-five thousand, two hundred fifty".