2155854528 has 140 divisors (see below), whose sum is σ = 6426110592. Its totient is φ = 714631680.

The previous prime is 2155854509. The next prime is 2155854539. The reversal of 2155854528 is 8254585512.

2155854528 is a `hidden beast` number, since 2 + 1 + 5 + 585 + 45 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1020193 + ... + 1022303.

Almost surely, 2^2155854528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155854528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3213055296).

2155854528 is an abundant number, since it is smaller than the sum of its proper divisors (4270256064).

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

2155854528 is a wasteful number, since it uses less digits than its factorization.

2155854528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332 (or 2313 counting only the distinct ones).

The product of its digits is 640000, while the sum is 45.

The square root of 2155854528 is about 46431.1805578967. The cubic root of 2155854528 is about 1291.8333262102.

The spelling of 2155854528 in words is "two billion, one hundred fifty-five million, eight hundred fifty-four thousand, five hundred twenty-eight".