258425765 has 32 divisors (see below), whose sum is σ = 346730496. Its totient is φ = 183617280.

The previous prime is 258425759. The next prime is 258425773. The reversal of 258425765 is 567524852.

It is not a de Polignac number, because 258425765 - 2¹⁴ = 258409381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 557924 + ... + 558386.

It is an arithmetic number, because the mean of its divisors is an integer number (10835328).

Almost surely, 2^258425765 is an apocalyptic number.

It is an amenable number.

258425765 is a deficient number, since it is larger than the sum of its proper divisors (88304731).

258425765 is a wasteful number, since it uses less digits than its factorization.

258425765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its digits is 672000, while the sum is 44.

The square root of 258425765 is about 16075.6264263636. The cubic root of 258425765 is about 636.9596723687.

The spelling of 258425765 in words is "two hundred fifty-eight million, four hundred twenty-five thousand, seven hundred sixty-five".