2555442140 has 48 divisors (see below), whose sum is σ = 5614539840. Its totient is φ = 975152640.

The previous prime is 2555442121. The next prime is 2555442157. The reversal of 2555442140 is 412445552.

2555442140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2555442097 and 2555442106.

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, 171800 + ... + 186080.

It is an arithmetic number, because the mean of its divisors is an integer number (116969580).

Almost surely, 2^2555442140 is an apocalyptic number.

2555442140 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 2555442140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2807269920).

2555442140 is an abundant number, since it is smaller than the sum of its proper divisors (3059097700).

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

2555442140 is a wasteful number, since it uses less digits than its factorization.

2555442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702 (or 14700 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 2555442140 is about 50551.3811878568. The cubic root of 2555442140 is about 1367.1684176576.

Adding to 2555442140 its reverse (412445552), we get a palindrome (2967887692).

The spelling of 2555442140 in words is "two billion, five hundred fifty-five million, four hundred forty-two thousand, one hundred forty".