2554511220 has 72 divisors (see below), whose sum is σ = 7752905160. Its totient is φ = 680832000.

The previous prime is 2554511209. The next prime is 2554511227. The reversal of 2554511220 is 221154552.

2554511220 is a `hidden beast` number, since 2 + 5 + 545 + 112 + 2 + 0 = 666.

2554511220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1028196 + 2553483024 = 1014^2 + 50532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2554511227) 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, 537816 + ... + 542544.

Almost surely, 2^2554511220 is an apocalyptic number.

2554511220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2554511220 is an abundant number, since it is smaller than the sum of its proper divisors (5198393940).

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

2554511220 is a wasteful number, since it uses less digits than its factorization.

2554511220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745 (or 7740 counting only the distinct ones).

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

The square root of 2554511220 is about 50542.1726877664. The cubic root of 2554511220 is about 1367.0023825931.

Adding to 2554511220 its reverse (221154552), we get a palindrome (2775665772).

The spelling of 2554511220 in words is "two billion, five hundred fifty-four million, five hundred eleven thousand, two hundred twenty".