258081623 has 8 divisors (see below), whose sum is σ = 266409792. Its totient is φ = 249824736.

The previous prime is 258081601. The next prime is 258081647. The reversal of 258081623 is 326180852.

258081623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 258081623 - 2¹⁸ = 257819479 is a prime.

It is a super-2 number, since 2×258081623² = 133212248260628258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258081673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10415 + ... + 24992.

It is an arithmetic number, because the mean of its divisors is an integer number (33301224).

Almost surely, 2^258081623 is an apocalyptic number.

258081623 is a deficient number, since it is larger than the sum of its proper divisors (8328169).

258081623 is a wasteful number, since it uses less digits than its factorization.

258081623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35641.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 258081623 is about 16064.9190162914. The cubic root of 258081623 is about 636.6768033193.

The spelling of 258081623 in words is "two hundred fifty-eight million, eighty-one thousand, six hundred twenty-three".