2555540020 has 96 divisors (see below), whose sum is σ = 5940869760. Its totient is φ = 915701760.

The previous prime is 2555540017. The next prime is 2555540069. The reversal of 2555540020 is 200455552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5901724 + ... + 5902156.

It is an arithmetic number, because the mean of its divisors is an integer number (61884060).

Almost surely, 2^2555540020 is an apocalyptic number.

2555540020 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 2555540020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2970434880).

2555540020 is an abundant number, since it is smaller than the sum of its proper divisors (3385329740).

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

2555540020 is a wasteful number, since it uses less digits than its factorization.

2555540020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 2555540020 is about 50552.3493024805. The cubic root of 2555540020 is about 1367.1858727891.

Adding to 2555540020 its reverse (200455552), we get a palindrome (2755995572).

The spelling of 2555540020 in words is "two billion, five hundred fifty-five million, five hundred forty thousand, twenty".