540255515 has 4 divisors (see below), whose sum is σ = 648306624. Its totient is φ = 432204408.

The previous prime is 540255511. The next prime is 540255517. The reversal of 540255515 is 515552045.

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 540255515 - 2² = 540255511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540255511) 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, 54025547 + ... + 54025556.

It is an arithmetic number, because the mean of its divisors is an integer number (162076656).

Almost surely, 2^540255515 is an apocalyptic number.

540255515 is a deficient number, since it is larger than the sum of its proper divisors (108051109).

540255515 is a wasteful number, since it uses less digits than its factorization.

540255515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108051108.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 540255515 is about 23243.3972344836. The cubic root of 540255515 is about 814.4537044325.

The spelling of 540255515 in words is "five hundred forty million, two hundred fifty-five thousand, five hundred fifteen".