2639255060 has 144 divisors (see below), whose sum is σ = 6451253760. Its totient is φ = 900599040.

The previous prime is 2639255057. The next prime is 2639255081. The reversal of 2639255060 is 605529362.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4263431 + ... + 4264049.

Almost surely, 2^2639255060 is an apocalyptic number.

2639255060 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 2639255060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225626880).

2639255060 is an abundant number, since it is smaller than the sum of its proper divisors (3811998700).

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

2639255060 is a wasteful number, since it uses less digits than its factorization.

2639255060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 2639255060 is about 51373.6806156616. The cubic root of 2639255060 is about 1381.9546375438.

The spelling of 2639255060 in words is "two billion, six hundred thirty-nine million, two hundred fifty-five thousand, sixty".