258078263 has 4 divisors (see below), whose sum is σ = 258113688. Its totient is φ = 258042840.

The previous prime is 258078257. The next prime is 258078277. The reversal of 258078263 is 362870852.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 258078263 - 2¹⁴ = 258061879 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 258078263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258078563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2333 + ... + 22838.

It is an arithmetic number, because the mean of its divisors is an integer number (64528422).

Almost surely, 2^258078263 is an apocalyptic number.

258078263 is a deficient number, since it is larger than the sum of its proper divisors (35425).

258078263 is a wasteful number, since it uses less digits than its factorization.

258078263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35424.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 258078263 is about 16064.8144402604. The cubic root of 258078263 is about 636.6740403131.

The spelling of 258078263 in words is "two hundred fifty-eight million, seventy-eight thousand, two hundred sixty-three".