2052905481 has 27 divisors (see below), whose sum is σ = 3261763687. Its totient is φ = 1243278960.

The previous prime is 2052905479. The next prime is 2052905507. The reversal of 2052905481 is 1845092502.

The square root of 2052905481 is 45309.

It is a perfect power (a square), and thus also a powerful number.

2052905481 is a `hidden beast` number, since 2 + 0 + 529 + 0 + 54 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2029052025 + 23853456 = 45045^2 + 4884^2 .

It is not a de Polignac number, because 2052905481 - 2¹ = 2052905479 is a prime.

It is a super-2 number, since 2×2052905481² = 8428841827839682722, 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 (2052905471) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1494511 + ... + 1495883.

Almost surely, 2^2052905481 is an apocalyptic number.

2052905481 is the 45309-th square number.

2052905481 is the 22655-th centered octagonal number.

It is an amenable number.

2052905481 is a deficient number, since it is larger than the sum of its proper divisors (1208858206).

2052905481 is an equidigital number, since it uses as much as digits as its factorization.

2052905481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The cubic root of 2052905481 is about 1270.9339609372.

Multiplying 2052905481 by its sum of digits (36), we get a square (73904597316 = 271854²).

Adding to 2052905481 its reverse (1845092502), we get a palindrome (3897997983).

The spelling of 2052905481 in words is "two billion, fifty-two million, nine hundred five thousand, four hundred eighty-one".