2051554120 has 64 divisors (see below), whose sum is σ = 5755017600. Its totient is φ = 639444480.

The previous prime is 2051554079. The next prime is 2051554147. The reversal of 2051554120 is 214551502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329965 + ... + 336124.

It is an arithmetic number, because the mean of its divisors is an integer number (89922150).

Almost surely, 2^2051554120 is an apocalyptic number.

2051554120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051554120 is an abundant number, since it is smaller than the sum of its proper divisors (3703463480).

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

2051554120 is a wasteful number, since it uses less digits than its factorization.

2051554120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666118 (or 666114 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2051554120 is about 45294.0848235175. The cubic root of 2051554120 is about 1270.6550282086.

The spelling of 2051554120 in words is "two billion, fifty-one million, five hundred fifty-four thousand, one hundred twenty".