258422501 has 2 divisors, whose sum is σ = 258422502. Its totient is φ = 258422500.

The previous prime is 258422473. The next prime is 258422513. The reversal of 258422501 is 105224852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244171876 + 14250625 = 15626^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 258422501 - 2¹⁰ = 258421477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258422531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129211250 + 129211251.

It is an arithmetic number, because the mean of its divisors is an integer number (129211251).

Almost surely, 2^258422501 is an apocalyptic number.

It is an amenable number.

258422501 is a deficient number, since it is larger than the sum of its proper divisors (1).

258422501 is an equidigital number, since it uses as much as digits as its factorization.

258422501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 258422501 is about 16075.5249058934. The cubic root of 258422501 is about 636.9569906894.

The spelling of 258422501 in words is "two hundred fifty-eight million, four hundred twenty-two thousand, five hundred one".