540256487 has 2 divisors, whose sum is σ = 540256488. Its totient is φ = 540256486.

The previous prime is 540256471. The next prime is 540256513. The reversal of 540256487 is 784652045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540256487 - 2⁴ = 540256471 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540256417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270128243 + 270128244.

It is an arithmetic number, because the mean of its divisors is an integer number (270128244).

Almost surely, 2^540256487 is an apocalyptic number.

540256487 is a deficient number, since it is larger than the sum of its proper divisors (1).

540256487 is an equidigital number, since it uses as much as digits as its factorization.

540256487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 540256487 is about 23243.4181436380. The cubic root of 540256487 is about 814.4541928733.

The spelling of 540256487 in words is "five hundred forty million, two hundred fifty-six thousand, four hundred eighty-seven".