540026653 has 4 divisors (see below), whose sum is σ = 540928800. Its totient is φ = 539124508.

The previous prime is 540026651. The next prime is 540026659. The reversal of 540026653 is 356620045.

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: 356620045 = 5 ⋅71324009.

It is a cyclic number.

It is not a de Polignac number, because 540026653 - 2¹ = 540026651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540026651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450175 + ... + 451372.

It is an arithmetic number, because the mean of its divisors is an integer number (135232200).

Almost surely, 2^540026653 is an apocalyptic number.

It is an amenable number.

540026653 is a deficient number, since it is larger than the sum of its proper divisors (902147).

540026653 is an equidigital number, since it uses as much as digits as its factorization.

540026653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902146.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 540026653 is about 23238.4735514190. The cubic root of 540026653 is about 814.3386824197.

Adding to 540026653 its reverse (356620045), we get a palindrome (896646698).

The spelling of 540026653 in words is "five hundred forty million, twenty-six thousand, six hundred fifty-three".