540233225421 has 4 divisors (see below), whose sum is σ = 720310967232. Its totient is φ = 360155483612.

The previous prime is 540233225417. The next prime is 540233225431. The reversal of 540233225421 is 124522332045.

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.

It is a cyclic number.

It is not a de Polignac number, because 540233225421 - 2² = 540233225417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540233225431) 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, 90038870901 + ... + 90038870906.

It is an arithmetic number, because the mean of its divisors is an integer number (180077741808).

Almost surely, 2^540233225421 is an apocalyptic number.

It is an amenable number.

540233225421 is a deficient number, since it is larger than the sum of its proper divisors (180077741811).

540233225421 is a wasteful number, since it uses less digits than its factorization.

540233225421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180077741810.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 540233225421 its reverse (124522332045), we get a palindrome (664755557466).

The spelling of 540233225421 in words is "five hundred forty billion, two hundred thirty-three million, two hundred twenty-five thousand, four hundred twenty-one".