2772505560 has 512 divisors, whose sum is σ = 10152345600. Its totient is φ = 598456320.

The previous prime is 2772505559. The next prime is 2772505577. The reversal of 2772505560 is 655052772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41380647 + ... + 41380713.

It is an arithmetic number, because the mean of its divisors is an integer number (19828800).

Almost surely, 2^2772505560 is an apocalyptic number.

2772505560 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 2772505560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5076172800).

2772505560 is an abundant number, since it is smaller than the sum of its proper divisors (7379840040).

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

2772505560 is a wasteful number, since it uses less digits than its factorization.

2772505560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 2772505560 is about 52654.5872645489. The cubic root of 2772505560 is about 1404.8311934407.

The spelling of 2772505560 in words is "two billion, seven hundred seventy-two million, five hundred five thousand, five hundred sixty".