258325690277 has 4 divisors (see below), whose sum is σ = 258728695116. Its totient is φ = 257922685440.

The previous prime is 258325690253. The next prime is 258325690279. The reversal of 258325690277 is 772096523852.

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

It can be written as a sum of positive squares in 2 ways, for example, as 142558349761 + 115767340516 = 377569^2 + 340246^2 .

It is a cyclic number.

It is not a de Polignac number, because 258325690277 - 2¹⁶ = 258325624741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258325690279) 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, 201501458 + ... + 201502739.

It is an arithmetic number, because the mean of its divisors is an integer number (64682173779).

Almost surely, 2^258325690277 is an apocalyptic number.

It is an amenable number.

258325690277 is a deficient number, since it is larger than the sum of its proper divisors (403004839).

258325690277 is an equidigital number, since it uses as much as digits as its factorization.

258325690277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403004838.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 258325690277 in words is "two hundred fifty-eight billion, three hundred twenty-five million, six hundred ninety thousand, two hundred seventy-seven".