2578055000 has 40 divisors (see below), whose sum is σ = 6040394580. Its totient is φ = 1031220000.

The previous prime is 2578054993. The next prime is 2578055003. The reversal of 2578055000 is 5508752.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578055003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 252806 + ... + 262805.

Almost surely, 2^2578055000 is an apocalyptic number.

2578055000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2578055000 is an abundant number, since it is smaller than the sum of its proper divisors (3462339580).

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

2578055000 is an equidigital number, since it uses as much as digits as its factorization.

2578055000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515637 (or 515618 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 2578055000 is about 50774.5507119462. The cubic root of 2578055000 is about 1371.1892279285.

The spelling of 2578055000 in words is "two billion, five hundred seventy-eight million, fifty-five thousand".