2154202554 has 16 divisors (see below), whose sum is σ = 4923891648. Its totient is φ = 615486432.

The previous prime is 2154202553. The next prime is 2154202579. The reversal of 2154202554 is 4552024512.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2154202553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25645227 + ... + 25645310.

It is an arithmetic number, because the mean of its divisors is an integer number (307743228).

Almost surely, 2^2154202554 is an apocalyptic number.

2154202554 is an abundant number, since it is smaller than the sum of its proper divisors (2769689094).

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

2154202554 is a wasteful number, since it uses less digits than its factorization.

2154202554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51290549.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2154202554 is about 46413.3876591658. The cubic root of 2154202554 is about 1291.5032760504.

The spelling of 2154202554 in words is "two billion, one hundred fifty-four million, two hundred two thousand, five hundred fifty-four".