258504013 has 2 divisors, whose sum is σ = 258504014. Its totient is φ = 258504012.

The previous prime is 258503981. The next prime is 258504017. The reversal of 258504013 is 310405852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151733124 + 106770889 = 12318^2 + 10333^2 .

It is a cyclic number.

It is not a de Polignac number, because 258504013 - 2⁵ = 258503981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258504017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129252006 + 129252007.

It is an arithmetic number, because the mean of its divisors is an integer number (129252007).

Almost surely, 2^258504013 is an apocalyptic number.

It is an amenable number.

258504013 is a deficient number, since it is larger than the sum of its proper divisors (1).

258504013 is an equidigital number, since it uses as much as digits as its factorization.

258504013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 258504013 is about 16078.0599886927. The cubic root of 258504013 is about 637.0239536152.

Adding to 258504013 its reverse (310405852), we get a palindrome (568909865).

The spelling of 258504013 in words is "two hundred fifty-eight million, five hundred four thousand, thirteen".