2055532240 has 20 divisors (see below), whose sum is σ = 4779112644. Its totient is φ = 822212864.

The previous prime is 2055532229. The next prime is 2055532243. The reversal of 2055532240 is 422355502.

It can be written as a sum of positive squares in 2 ways, for example, as 1202424976 + 853107264 = 34676^2 + 29208^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×2055532240³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2055532199 and 2055532208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055532243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12846997 + ... + 12847156.

Almost surely, 2^2055532240 is an apocalyptic number.

2055532240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2055532240 is an abundant number, since it is smaller than the sum of its proper divisors (2723580404).

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

2055532240 is a wasteful number, since it uses less digits than its factorization.

2055532240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25694166 (or 25694160 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2055532240 is about 45337.9778993285. The cubic root of 2055532240 is about 1271.4757969485.

Adding to 2055532240 its reverse (422355502), we get a palindrome (2477887742).

The spelling of 2055532240 in words is "two billion, fifty-five million, five hundred thirty-two thousand, two hundred forty".