540022051 has 4 divisors (see below), whose sum is σ = 571788072. Its totient is φ = 508256032.

The previous prime is 540022031. The next prime is 540022061. The reversal of 540022051 is 150220045.

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

It is a cyclic number.

It is not a de Polignac number, because 540022051 - 2⁵ = 540022019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540022001) 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, 15882985 + ... + 15883018.

It is an arithmetic number, because the mean of its divisors is an integer number (142947018).

Almost surely, 2^540022051 is an apocalyptic number.

540022051 is a deficient number, since it is larger than the sum of its proper divisors (31766021).

540022051 is a wasteful number, since it uses less digits than its factorization.

540022051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31766020.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 540022051 is about 23238.3745343774. The cubic root of 540022051 is about 814.3363692022.

Adding to 540022051 its reverse (150220045), we get a palindrome (690242096).

The spelling of 540022051 in words is "five hundred forty million, twenty-two thousand, fifty-one".