2051155584 has 48 divisors (see below), whose sum is σ = 5902417170. Its totient is φ = 683718144.

The previous prime is 2051155573. The next prime is 2051155607. The reversal of 2051155584 is 4855511502.

2051155584 is a `hidden beast` number, since 20 + 5 + 1 + 1 + 55 + 584 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1073217600 + 977937984 = 32760^2 + 31272^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 889107 + ... + 891410.

Almost surely, 2^2051155584 is an apocalyptic number.

2051155584 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2051155584 is an abundant number, since it is smaller than the sum of its proper divisors (3851261586).

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

2051155584 is a wasteful number, since it uses less digits than its factorization.

2051155584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780537 (or 1780522 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The square root of 2051155584 is about 45289.6851832732. The cubic root of 2051155584 is about 1270.5727435051.

The spelling of 2051155584 in words is "two billion, fifty-one million, one hundred fifty-five thousand, five hundred eighty-four".