2554151220 has 216 divisors, whose sum is σ = 8210802600. Its totient is φ = 641862144.

The previous prime is 2554151207. The next prime is 2554151227. The reversal of 2554151220 is 221514552.

2554151220 is a `hidden beast` number, since 25 + 5 + 415 + 1 + 220 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 453945636 + 2100205584 = 21306^2 + 45828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2554151227) 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 71 ways as a sum of consecutive naturals, for example, 23432526 + ... + 23432634.

It is an arithmetic number, because the mean of its divisors is an integer number (38012975).

Almost surely, 2^2554151220 is an apocalyptic number.

2554151220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2554151220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4105401300).

2554151220 is an abundant number, since it is smaller than the sum of its proper divisors (5656651380).

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

2554151220 is a wasteful number, since it uses less digits than its factorization.

2554151220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2554151220 is about 50538.6111799681. The cubic root of 2554151220 is about 1366.9381636572.

Adding to 2554151220 its reverse (221514552), we get a palindrome (2775665772).

The spelling of 2554151220 in words is "two billion, five hundred fifty-four million, one hundred fifty-one thousand, two hundred twenty".