540075551 has 4 divisors (see below), whose sum is σ = 568500600. Its totient is φ = 511650504.

The previous prime is 540075539. The next prime is 540075559. The reversal of 540075551 is 155570045.

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 540075551 - 2¹⁰ = 540074527 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 (540075559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14212496 + ... + 14212533.

It is an arithmetic number, because the mean of its divisors is an integer number (142125150).

Almost surely, 2^540075551 is an apocalyptic number.

540075551 is a deficient number, since it is larger than the sum of its proper divisors (28425049).

540075551 is a wasteful number, since it uses less digits than its factorization.

540075551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28425048.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 540075551 is about 23239.5256190827. The cubic root of 540075551 is about 814.3632604233.

The spelling of 540075551 in words is "five hundred forty million, seventy-five thousand, five hundred fifty-one".