505452663 has 16 divisors (see below), whose sum is σ = 749548800. Its totient is φ = 336639960.

The previous prime is 505452643. The next prime is 505452667. The reversal of 505452663 is 366254505.

It is a happy number.

505452663 is a `hidden beast` number, since 50 + 545 + 2 + 6 + 63 = 666.

It is not a de Polignac number, because 505452663 - 2⁵ = 505452631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505452667) 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, 20878 + ... + 38036.

It is an arithmetic number, because the mean of its divisors is an integer number (46846800).

Almost surely, 2^505452663 is an apocalyptic number.

505452663 is a deficient number, since it is larger than the sum of its proper divisors (244096137).

505452663 is a wasteful number, since it uses less digits than its factorization.

505452663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18259 (or 18253 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 505452663 is about 22482.2744178608. The cubic root of 505452663 is about 796.5752887574.

The spelling of 505452663 in words is "five hundred five million, four hundred fifty-two thousand, six hundred sixty-three".