258019265 has 16 divisors (see below), whose sum is σ = 357167232. Its totient is φ = 175271424.

The previous prime is 258019261. The next prime is 258019271. The reversal of 258019265 is 562910852.

258019265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 258019265 - 2² = 258019261 is a prime.

It is a super-2 number, since 2×258019265² = 133147882222280450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (258019261) 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, 30704 + ... + 38193.

It is an arithmetic number, because the mean of its divisors is an integer number (22322952).

Almost surely, 2^258019265 is an apocalyptic number.

It is an amenable number.

258019265 is a deficient number, since it is larger than the sum of its proper divisors (99147967).

258019265 is a wasteful number, since it uses less digits than its factorization.

258019265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69016.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 258019265 is about 16062.9780862703. The cubic root of 258019265 is about 636.6255209773.

The spelling of 258019265 in words is "two hundred fifty-eight million, nineteen thousand, two hundred sixty-five".