542006505 has 16 divisors (see below), whose sum is σ = 963567360. Its totient is φ = 289070064.

The previous prime is 542006503. The next prime is 542006551. The reversal of 542006505 is 505600245.

542006505 is a `hidden beast` number, since 5 + 4 + 2 + 0 + 0 + 650 + 5 = 666.

It is not a de Polignac number, because 542006505 - 2¹ = 542006503 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (542006503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2007297 + ... + 2007566.

It is an arithmetic number, because the mean of its divisors is an integer number (60222960).

Almost surely, 2^542006505 is an apocalyptic number.

It is an amenable number.

542006505 is a deficient number, since it is larger than the sum of its proper divisors (421560855).

542006505 is a wasteful number, since it uses less digits than its factorization.

542006505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014877 (or 4014871 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 542006505 is about 23281.0331600640. The cubic root of 542006505 is about 815.3326480296.

The spelling of 542006505 in words is "five hundred forty-two million, six thousand, five hundred five".