2054615820 has 24 divisors (see below), whose sum is σ = 5752924464. Its totient is φ = 547897536.

The previous prime is 2054615803. The next prime is 2054615873. The reversal of 2054615820 is 285164502.

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, 17121739 + ... + 17121858.

It is an arithmetic number, because the mean of its divisors is an integer number (239705186).

Almost surely, 2^2054615820 is an apocalyptic number.

2054615820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2054615820 is an abundant number, since it is smaller than the sum of its proper divisors (3698308644).

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

2054615820 is a wasteful number, since it uses less digits than its factorization.

2054615820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34243609 (or 34243607 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2054615820 is about 45327.8702345478. The cubic root of 2054615820 is about 1271.2868144177.

The spelling of 2054615820 in words is "two billion, fifty-four million, six hundred fifteen thousand, eight hundred twenty".