258049481 has 4 divisors (see below), whose sum is σ = 258093972. Its totient is φ = 258004992.

The previous prime is 258049457. The next prime is 258049483. The reversal of 258049481 is 184940852.

258049481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 234855625 = 4816^2 + 15325^2 .

It is a cyclic number.

It is not a de Polignac number, because 258049481 - 2²² = 253855177 is a prime.

It is a super-2 number, since 2×258049481² = 133179069288738722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258049483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11960 + ... + 25673.

It is an arithmetic number, because the mean of its divisors is an integer number (64523493).

Almost surely, 2^258049481 is an apocalyptic number.

It is an amenable number.

258049481 is a deficient number, since it is larger than the sum of its proper divisors (44491).

258049481 is an equidigital number, since it uses as much as digits as its factorization.

258049481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44490.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 258049481 is about 16063.9186066165. The cubic root of 258049481 is about 636.6503712223.

The spelling of 258049481 in words is "two hundred fifty-eight million, forty-nine thousand, four hundred eighty-one".