2054899560 has 128 divisors (see below), whose sum is σ = 7054387200. Its totient is φ = 469090560.

The previous prime is 2054899519. The next prime is 2054899589. The reversal of 2054899560 is 659984502.

It is a Cunningham number, because it is equal to 45331²-1.

It is a super-2 number, since 2×2054899560² = 8445224403376387200, which contains 22 as substring.

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, 1268431 + ... + 1270049.

It is an arithmetic number, because the mean of its divisors is an integer number (55112400).

Almost surely, 2^2054899560 is an apocalyptic number.

2054899560 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 2054899560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3527193600).

2054899560 is an abundant number, since it is smaller than the sum of its proper divisors (4999487640).

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

2054899560 is a wasteful number, since it uses less digits than its factorization.

2054899560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 2054899560 is about 45330.9999889700. Note that the first 4 decimals coincide. The cubic root of 2054899560 is about 1271.3453327895.

The spelling of 2054899560 in words is "two billion, fifty-four million, eight hundred ninety-nine thousand, five hundred sixty".