505285507 has 2 divisors, whose sum is σ = 505285508. Its totient is φ = 505285506.

The previous prime is 505285481. The next prime is 505285511. The reversal of 505285507 is 705582505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505285507 - 2⁷ = 505285379 is a prime.

It is not a weakly prime, because it can be changed into another prime (505285537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252642753 + 252642754.

It is an arithmetic number, because the mean of its divisors is an integer number (252642754).

Almost surely, 2^505285507 is an apocalyptic number.

505285507 is a deficient number, since it is larger than the sum of its proper divisors (1).

505285507 is an equidigital number, since it uses as much as digits as its factorization.

505285507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 505285507 is about 22478.5566040171. The cubic root of 505285507 is about 796.4874684533.

The spelling of 505285507 in words is "five hundred five million, two hundred eighty-five thousand, five hundred seven".