520406127 has 14 divisors (see below), whose sum is σ = 780253352. Its totient is φ = 346936932.

The previous prime is 520406113. The next prime is 520406129. The reversal of 520406127 is 721604025.

520406127 is a `hidden beast` number, since 5 + 2 + 0 + 40 + 612 + 7 = 666.

It is not a de Polignac number, because 520406127 - 2¹⁹ = 519881839 is a prime.

It is a super-3 number, since 3×520406127³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520406127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520406129) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 356203 + ... + 357660.

Almost surely, 2^520406127 is an apocalyptic number.

520406127 is a deficient number, since it is larger than the sum of its proper divisors (259847225).

520406127 is an frugal number, since it uses more digits than its factorization.

520406127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713881 (or 713866 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 520406127 is about 22812.4116875003. The cubic root of 520406127 is about 804.3544466361.

The spelling of 520406127 in words is "five hundred twenty million, four hundred six thousand, one hundred twenty-seven".