258425643 has 16 divisors (see below), whose sum is σ = 394016000. Its totient is φ = 147587616.

The previous prime is 258425627. The next prime is 258425647. The reversal of 258425643 is 346524852.

It is not a de Polignac number, because 258425643 - 2⁴ = 258425627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258425647) 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, 71721 + ... + 75237.

It is an arithmetic number, because the mean of its divisors is an integer number (24626000).

Almost surely, 2^258425643 is an apocalyptic number.

258425643 is a deficient number, since it is larger than the sum of its proper divisors (135590357).

258425643 is a wasteful number, since it uses less digits than its factorization.

258425643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026.

The product of its digits is 230400, while the sum is 39.

The square root of 258425643 is about 16075.6226317987. The cubic root of 258425643 is about 636.9595721348.

The spelling of 258425643 in words is "two hundred fifty-eight million, four hundred twenty-five thousand, six hundred forty-three".