2555310440 has 16 divisors (see below), whose sum is σ = 5749448580. Its totient is φ = 1022124160.

The previous prime is 2555310343. The next prime is 2555310449. The reversal of 2555310440 is 440135552.

It can be written as a sum of positive squares in 2 ways, for example, as 2550048004 + 5262436 = 50498^2 + 2294^2 .

It is a super-2 number, since 2×2555310440² = 13059222889545987200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2555310449) 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, 31941341 + ... + 31941420.

Almost surely, 2^2555310440 is an apocalyptic number.

2555310440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555310440 is an abundant number, since it is smaller than the sum of its proper divisors (3194138140).

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

2555310440 is a wasteful number, since it uses less digits than its factorization.

2555310440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63882772 (or 63882768 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2555310440 is about 50550.0785360419. The cubic root of 2555310440 is about 1367.1449306360.

Adding to 2555310440 its reverse (440135552), we get a palindrome (2995445992).

The spelling of 2555310440 in words is "two billion, five hundred fifty-five million, three hundred ten thousand, four hundred forty".