5403573081 has 27 divisors (see below), whose sum is σ = 7913343711. Its totient is φ = 3553131024.

The previous prime is 5403573067. The next prime is 5403573101. The reversal of 5403573081 is 1803753045.

The square root of 5403573081 is 73509.

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

5403573081 is a `hidden beast` number, since 5 + 4 + 0 + 3 + 573 + 0 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5032625481 + 370947600 = 70941^2 + 19260^2 .

It is not a de Polignac number, because 5403573081 - 2¹³ = 5403564889 is a prime.

It is a super-3 number, since 3×5403573081³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (5403573181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23596275 + ... + 23596503.

Almost surely, 2^5403573081 is an apocalyptic number.

5403573081 is the 73509-th square number.

5403573081 is the 36755-th centered octagonal number.

It is an amenable number.

5403573081 is a deficient number, since it is larger than the sum of its proper divisors (2509770630).

5403573081 is an equidigital number, since it uses as much as digits as its factorization.

5403573081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The cubic root of 5403573081 is about 1754.7975113984.

Multiplying 5403573081 by its sum of digits (36), we get a square (194528630916 = 441054²).

The spelling of 5403573081 in words is "five billion, four hundred three million, five hundred seventy-three thousand, eighty-one".