258551 has 2 divisors, whose sum is σ = 258552. Its totient is φ = 258550.

The previous prime is 258539. The next prime is 258563. The reversal of 258551 is 155852.

It is a balanced prime because it is at equal distance from previous prime (258539) and next prime (258563).

It is a cyclic number.

It is not a de Polignac number, because 258551 - 2⁶ = 258487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129275 + 129276.

It is an arithmetic number, because the mean of its divisors is an integer number (129276).

2²⁵⁸⁵⁵¹ is an apocalyptic number.

258551 is a deficient number, since it is larger than the sum of its proper divisors (1).

258551 is an equidigital number, since it uses as much as digits as its factorization.

258551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000, while the sum is 26.

The square root of 258551 is about 508.4791047821. The cubic root of 258551 is about 63.7062547511.

The spelling of 258551 in words is "two hundred fifty-eight thousand, five hundred fifty-one".