2154550032 has 120 divisors (see below), whose sum is σ = 6178283384. Its totient is φ = 700710912.

The previous prime is 2154550019. The next prime is 2154550037. The reversal of 2154550032 is 2300554512.

It is a happy number.

2154550032 is a `hidden beast` number, since 2 + 154 + 5 + 500 + 3 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1218816 + 2153331216 = 1104^2 + 46404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2154549978 and 2154550005.

It is not an unprimeable number, because it can be changed into a prime (2154550037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1018608 + ... + 1020720.

Almost surely, 2^2154550032 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 2154550032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3089141692).

2154550032 is an abundant number, since it is smaller than the sum of its proper divisors (4023733352).

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

2154550032 is a wasteful number, since it uses less digits than its factorization.

2154550032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2154550032 is about 46417.1308031852. The cubic root of 2154550032 is about 1291.5727131680.

The spelling of 2154550032 in words is "two billion, one hundred fifty-four million, five hundred fifty thousand, thirty-two".