258225503 has 4 divisors (see below), whose sum is σ = 264523728. Its totient is φ = 251927280.

The previous prime is 258225491. The next prime is 258225551. The reversal of 258225503 is 305522852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 258225503 - 2¹⁰ = 258224479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 258225503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258225103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3149051 + ... + 3149132.

It is an arithmetic number, because the mean of its divisors is an integer number (66130932).

Almost surely, 2^258225503 is an apocalyptic number.

258225503 is a deficient number, since it is larger than the sum of its proper divisors (6298225).

258225503 is an equidigital number, since it uses as much as digits as its factorization.

258225503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298224.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 258225503 is about 16069.3964727988. The cubic root of 258225503 is about 636.7950966967.

The spelling of 258225503 in words is "two hundred fifty-eight million, two hundred twenty-five thousand, five hundred three".