2775005020 has 24 divisors (see below), whose sum is σ = 5951502144. Its totient is φ = 1086384576.

The previous prime is 2775005017. The next prime is 2775005033. The reversal of 2775005020 is 205005772.

It is a super-2 number, since 2×2775005020² = 15401305722050400800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2775005020.

It is a congruent number.

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, 1475127 + ... + 1477006.

It is an arithmetic number, because the mean of its divisors is an integer number (247979256).

Almost surely, 2^2775005020 is an apocalyptic number.

2775005020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2775005020 is an abundant number, since it is smaller than the sum of its proper divisors (3176497124).

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

2775005020 is a wasteful number, since it uses less digits than its factorization.

2775005020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952189 (or 2952187 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 2775005020 is about 52678.3164119735. The cubic root of 2775005020 is about 1405.2532262261.

The spelling of 2775005020 in words is "two billion, seven hundred seventy-five million, five thousand, twenty".