258625842 has 32 divisors (see below), whose sum is σ = 526417920. Its totient is φ = 84692880.

The previous prime is 258625841. The next prime is 258625883. The reversal of 258625842 is 248526852.

258625842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 258625794 and 258625803.

It is not an unprimeable number, because it can be changed into a prime (258625841) 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, 93759 + ... + 96477.

It is an arithmetic number, because the mean of its divisors is an integer number (16450560).

Almost surely, 2^258625842 is an apocalyptic number.

258625842 is an abundant number, since it is smaller than the sum of its proper divisors (267792078).

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

258625842 is a wasteful number, since it uses less digits than its factorization.

258625842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998.

The product of its digits is 307200, while the sum is 42.

The square root of 258625842 is about 16081.8482146798. The cubic root of 258625842 is about 637.1240111240.

The spelling of 258625842 in words is "two hundred fifty-eight million, six hundred twenty-five thousand, eight hundred forty-two".