2054444481 has 6 divisors (see below), whose sum is σ = 2967530930. Its totient is φ = 1369629648.

The previous prime is 2054444473. The next prime is 2054444507. The reversal of 2054444481 is 1844444502.

2054444481 is a `hidden beast` number, since 205 + 4 + 4 + 4 + 448 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1237913856 + 816530625 = 35184^2 + 28575^2 .

It is not a de Polignac number, because 2054444481 - 2³ = 2054444473 is a prime.

It is a super-2 number, since 2×2054444481² = 8441484251022718722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2054444461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114135796 + ... + 114135813.

Almost surely, 2^2054444481 is an apocalyptic number.

It is an amenable number.

2054444481 is a deficient number, since it is larger than the sum of its proper divisors (913086449).

2054444481 is a wasteful number, since it uses less digits than its factorization.

2054444481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228271615 (or 228271612 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 36.

The square root of 2054444481 is about 45325.9801989985. The cubic root of 2054444481 is about 1271.2514749535.

Adding to 2054444481 its reverse (1844444502), we get a palindrome (3898888983).

It can be divided in two parts, 20544 and 44481, that added together give a square (65025 = 255²).

The spelling of 2054444481 in words is "two billion, fifty-four million, four hundred forty-four thousand, four hundred eighty-one".