1258055 has 4 divisors (see below), whose sum is σ = 1509672. Its totient is φ = 1006440.

The previous prime is 1258039. The next prime is 1258079. The reversal of 1258055 is 5508521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5508521 = 29 ⋅189949.

It is not a de Polignac number, because 1258055 - 2⁴ = 1258039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125801 + ... + 125810.

It is an arithmetic number, because the mean of its divisors is an integer number (377418).

2^1258055 is an apocalyptic number.

1258055 is a deficient number, since it is larger than the sum of its proper divisors (251617).

1258055 is an equidigital number, since it uses as much as digits as its factorization.

1258055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251616.

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

The square root of 1258055 is about 1121.6305095708. The cubic root of 1258055 is about 107.9526255413.

The spelling of 1258055 in words is "one million, two hundred fifty-eight thousand, fifty-five".