2558278000 has 80 divisors (see below), whose sum is σ = 6250162464. Its totient is φ = 1012684800.

The previous prime is 2558277979. The next prime is 2558278043. The reversal of 2558278000 is 8728552.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187407 + ... + 200593.

Almost surely, 2^2558278000 is an apocalyptic number.

2558278000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2558278000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3125081232).

2558278000 is an abundant number, since it is smaller than the sum of its proper divisors (3691884464).

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

2558278000 is a wasteful number, since it uses less digits than its factorization.

2558278000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13307 (or 13291 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 2558278000 is about 50579.4226934235. The cubic root of 2558278000 is about 1367.6739616063.

The spelling of 2558278000 in words is "two billion, five hundred fifty-eight million, two hundred seventy-eight thousand".