258058791 has 20 divisors (see below), whose sum is σ = 398791800. Its totient is φ = 166105296.

The previous prime is 258058789. The next prime is 258058819. The reversal of 258058791 is 197850852.

It is a happy number.

It is not a de Polignac number, because 258058791 - 2¹ = 258058789 is a prime.

It is a super-2 number, since 2×258058791² = 133188679224763362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258054791) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52581 + ... + 57278.

It is an arithmetic number, because the mean of its divisors is an integer number (19939590).

Almost surely, 2^258058791 is an apocalyptic number.

258058791 is a deficient number, since it is larger than the sum of its proper divisors (140733009).

258058791 is a wasteful number, since it uses less digits than its factorization.

258058791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109900 (or 109891 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 258058791 is about 16064.2083838576. The cubic root of 258058791 is about 636.6580275623.

It can be divided in two parts, 25805 and 8791, that added together give a square (34596 = 186²).

The spelling of 258058791 in words is "two hundred fifty-eight million, fifty-eight thousand, seven hundred ninety-one".