540054401 has 4 divisors (see below), whose sum is σ = 541004100. Its totient is φ = 539104704.

The previous prime is 540054397. The next prime is 540054407. The reversal of 540054401 is 104450045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172948801 + 367105600 = 13151^2 + 19160^2 .

It is a cyclic number.

It is not a de Polignac number, because 540054401 - 2² = 540054397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540054407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473996 + ... + 475133.

It is an arithmetic number, because the mean of its divisors is an integer number (135251025).

Almost surely, 2^540054401 is an apocalyptic number.

It is an amenable number.

540054401 is a deficient number, since it is larger than the sum of its proper divisors (949699).

540054401 is an equidigital number, since it uses as much as digits as its factorization.

540054401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949698.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 540054401 is about 23239.0705709157. The cubic root of 540054401 is about 814.3526298070.

The spelling of 540054401 in words is "five hundred forty million, fifty-four thousand, four hundred one".