2558706620 has 12 divisors (see below), whose sum is σ = 5373283944. Its totient is φ = 1023482640.

The previous prime is 2558706593. The next prime is 2558706679. The reversal of 2558706620 is 266078552.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 63967646 + ... + 63967685.

It is an arithmetic number, because the mean of its divisors is an integer number (447773662).

Almost surely, 2^2558706620 is an apocalyptic number.

2558706620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2558706620 is an abundant number, since it is smaller than the sum of its proper divisors (2814577324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2558706620 is a wasteful number, since it uses less digits than its factorization.

2558706620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127935340 (or 127935338 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 2558706620 is about 50583.6596145435. The cubic root of 2558706620 is about 1367.7503384606.

The spelling of 2558706620 in words is "two billion, five hundred fifty-eight million, seven hundred six thousand, six hundred twenty".