2775297000 has 128 divisors (see below), whose sum is σ = 9895991040. Its totient is φ = 634348800.

The previous prime is 2775296977. The next prime is 2775297037. The reversal of 2775297000 is 7925772.

It is a self number, because there is not a number n which added to its sum of digits gives 2775297000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45079 + ... + 87078.

It is an arithmetic number, because the mean of its divisors is an integer number (77312430).

Almost surely, 2^2775297000 is an apocalyptic number.

2775297000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2775297000 is an abundant number, since it is smaller than the sum of its proper divisors (7120694040).

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

2775297000 is a wasteful number, since it uses less digits than its factorization.

2775297000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132188 (or 132174 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 2775297000 is about 52681.0876880878. The cubic root of 2775297000 is about 1405.3025103949.

The spelling of 2775297000 in words is "two billion, seven hundred seventy-five million, two hundred ninety-seven thousand".