2772505540 has 24 divisors (see below), whose sum is σ = 6654013632. Its totient is φ = 950573280.

The previous prime is 2772505529. The next prime is 2772505559. The reversal of 2772505540 is 455052772.

It is a self number, because there is not a number n which added to its sum of digits gives 2772505540.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9901666 + ... + 9901945.

It is an arithmetic number, because the mean of its divisors is an integer number (277250568).

Almost surely, 2^2772505540 is an apocalyptic number.

2772505540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2772505540 is an abundant number, since it is smaller than the sum of its proper divisors (3881508092).

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

2772505540 is a wasteful number, since it uses less digits than its factorization.

2772505540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19803627 (or 19803625 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 37.

The square root of 2772505540 is about 52654.5870746320. The cubic root of 2772505540 is about 1404.8311900627.

The spelling of 2772505540 in words is "two billion, seven hundred seventy-two million, five hundred five thousand, five hundred forty".