2055540312 has 384 divisors, whose sum is σ = 7116595200. Its totient is φ = 522547200.

The previous prime is 2055540269. The next prime is 2055540313. The reversal of 2055540312 is 2130455502.

It is a happy number.

2055540312 is a `hidden beast` number, since 205 + 55 + 403 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055540313) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18858114 + ... + 18858222.

It is an arithmetic number, because the mean of its divisors is an integer number (18532800).

Almost surely, 2^2055540312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055540312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3558297600).

2055540312 is an abundant number, since it is smaller than the sum of its proper divisors (5061054888).

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

2055540312 is a wasteful number, since it uses less digits than its factorization.

2055540312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 240 counting only the distinct ones).

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

The square root of 2055540312 is about 45338.0669195324. The cubic root of 2055540312 is about 1271.4774612927.

Adding to 2055540312 its reverse (2130455502), we get a palindrome (4185995814).

The spelling of 2055540312 in words is "two billion, fifty-five million, five hundred forty thousand, three hundred twelve".