540554401 has 4 divisors (see below), whose sum is σ = 549716400. Its totient is φ = 531392404.

The previous prime is 540554383. The next prime is 540554411. The reversal of 540554401 is 104455045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104455045 = 5 ⋅20891009.

It is a cyclic number.

It is not a de Polignac number, because 540554401 - 2⁵ = 540554369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540554401.

It is not an unprimeable number, because it can be changed into a prime (540554411) 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, 4580911 + ... + 4581028.

It is an arithmetic number, because the mean of its divisors is an integer number (137429100).

Almost surely, 2^540554401 is an apocalyptic number.

It is an amenable number.

540554401 is a deficient number, since it is larger than the sum of its proper divisors (9161999).

540554401 is an equidigital number, since it uses as much as digits as its factorization.

540554401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9161998.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 540554401 is about 23249.8258273046. The cubic root of 540554401 is about 814.6038703732.

The spelling of 540554401 in words is "five hundred forty million, five hundred fifty-four thousand, four hundred one".