540503669 has 2 divisors, whose sum is σ = 540503670. Its totient is φ = 540503668.

The previous prime is 540503647. The next prime is 540503671. The reversal of 540503669 is 966305045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475894225 + 64609444 = 21815^2 + 8038^2 .

It is a cyclic number.

It is not a de Polignac number, because 540503669 - 2¹² = 540499573 is a prime.

It is a super-2 number, since 2×540503669² = 584288432404923122, which contains 22 as substring.

Together with 540503671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540508669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270251834 + 270251835.

It is an arithmetic number, because the mean of its divisors is an integer number (270251835).

Almost surely, 2^540503669 is an apocalyptic number.

It is an amenable number.

540503669 is a deficient number, since it is larger than the sum of its proper divisors (1).

540503669 is an equidigital number, since it uses as much as digits as its factorization.

540503669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 540503669 is about 23248.7347827790. The cubic root of 540503669 is about 814.5783855646.

The spelling of 540503669 in words is "five hundred forty million, five hundred three thousand, six hundred sixty-nine".