540240255 has 24 divisors (see below), whose sum is σ = 966625920. Its totient is φ = 278832960.

The previous prime is 540240247. The next prime is 540240257. The reversal of 540240255 is 552042045.

540240255 is a `hidden beast` number, since 5 + 402 + 4 + 0 + 255 = 666.

It is not a de Polignac number, because 540240255 - 2³ = 540240247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540240257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192240 + ... + 195029.

It is an arithmetic number, because the mean of its divisors is an integer number (40276080).

Almost surely, 2^540240255 is an apocalyptic number.

540240255 is a deficient number, since it is larger than the sum of its proper divisors (426385665).

540240255 is a wasteful number, since it uses less digits than its factorization.

540240255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387311 (or 387308 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 540240255 is about 23243.0689668985. The cubic root of 540240255 is about 814.4460360360.

The spelling of 540240255 in words is "five hundred forty million, two hundred forty thousand, two hundred fifty-five".