258255825 has 12 divisors (see below), whose sum is σ = 426983088. Its totient is φ = 137736400.

The previous prime is 258255797. The next prime is 258255863. The reversal of 258255825 is 528552852.

It is not a de Polignac number, because 258255825 - 2¹⁴ = 258239441 is a prime.

It is a super-2 number, since 2×258255825² = 133392142292861250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1721631 + ... + 1721780.

It is an arithmetic number, because the mean of its divisors is an integer number (35581924).

Almost surely, 2^258255825 is an apocalyptic number.

258255825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

258255825 is a deficient number, since it is larger than the sum of its proper divisors (168727263).

258255825 is a wasteful number, since it uses less digits than its factorization.

258255825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443424 (or 3443419 counting only the distinct ones).

The product of its digits is 320000, while the sum is 42.

The square root of 258255825 is about 16070.3399155089. The cubic root of 258255825 is about 636.8200208360.

The spelling of 258255825 in words is "two hundred fifty-eight million, two hundred fifty-five thousand, eight hundred twenty-five".