2555201340 has 144 divisors (see below), whose sum is σ = 7869808128. Its totient is φ = 671006592.

The previous prime is 2555201333. The next prime is 2555201387. The reversal of 2555201340 is 431025552.

It is a happy number.

2555201340 is a `hidden beast` number, since 2 + 5 + 5 + 520 + 134 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5246577 + ... + 5247063.

Almost surely, 2^2555201340 is an apocalyptic number.

2555201340 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 2555201340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3934904064).

2555201340 is an abundant number, since it is smaller than the sum of its proper divisors (5314606788).

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

2555201340 is a wasteful number, since it uses less digits than its factorization.

2555201340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2555201340 is about 50548.9993966251. Note that the first 3 decimals coincide. The cubic root of 2555201340 is about 1367.1254734261.

Adding to 2555201340 its reverse (431025552), we get a palindrome (2986226892).

The spelling of 2555201340 in words is "two billion, five hundred fifty-five million, two hundred one thousand, three hundred forty".