258495947 has 12 divisors (see below), whose sum is σ = 264416160. Its totient is φ = 252693168.

The previous prime is 258495917. The next prime is 258495953. The reversal of 258495947 is 749594852.

It is not a de Polignac number, because 258495947 - 2⁶ = 258495883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258495917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1081454 + ... + 1081692.

It is an arithmetic number, because the mean of its divisors is an integer number (22034680).

Almost surely, 2^258495947 is an apocalyptic number.

258495947 is a deficient number, since it is larger than the sum of its proper divisors (5920213).

258495947 is an equidigital number, since it uses as much as digits as its factorization.

258495947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 479 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 53.

The square root of 258495947 is about 16077.8091480152. The cubic root of 258495947 is about 637.0173279429.

The spelling of 258495947 in words is "two hundred fifty-eight million, four hundred ninety-five thousand, nine hundred forty-seven".