258988745 has 8 divisors (see below), whose sum is σ = 313864200. Its totient is φ = 205139200.

The previous prime is 258988733. The next prime is 258988747. The reversal of 258988745 is 547889852.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48622729 + 210366016 = 6973^2 + 14504^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258988745 - 2⁴ = 258988729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258988747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255920 + ... + 256929.

It is an arithmetic number, because the mean of its divisors is an integer number (39233025).

Almost surely, 2^258988745 is an apocalyptic number.

It is an amenable number.

258988745 is a deficient number, since it is larger than the sum of its proper divisors (54875455).

258988745 is a wasteful number, since it uses less digits than its factorization.

258988745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512955.

The product of its digits is 6451200, while the sum is 56.

The square root of 258988745 is about 16093.1272597963. The cubic root of 258988745 is about 637.4218753424.

It can be divided in two parts, 25898 and 8745, that added together give a palindrome (34643).

The spelling of 258988745 in words is "two hundred fifty-eight million, nine hundred eighty-eight thousand, seven hundred forty-five".