2558986 has 4 divisors (see below), whose sum is σ = 3838482. Its totient is φ = 1279492.

The previous prime is 2558953. The next prime is 2559013. The reversal of 2558986 is 6898552.

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

It can be written as a sum of positive squares in only one way, i.e., 2047761 + 511225 = 1431^2 + 715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639745 + ... + 639748.

2^2558986 is an apocalyptic number.

2558986 is a deficient number, since it is larger than the sum of its proper divisors (1279496).

2558986 is a wasteful number, since it uses less digits than its factorization.

2558986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279495.

The product of its digits is 172800, while the sum is 43.

The square root of 2558986 is about 1599.6830936157. The cubic root of 2558986 is about 136.7800117280.

The spelling of 2558986 in words is "two million, five hundred fifty-eight thousand, nine hundred eighty-six".