505601505 has 24 divisors (see below), whose sum is σ = 927928872. Its totient is φ = 253791744.

The previous prime is 505601483. The next prime is 505601527. The reversal of 505601505 is 505106505.

505601505 is a `hidden beast` number, since 5 + 0 + 5 + 601 + 50 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (505601483) and next prime (505601527).

It can be written as a sum of positive squares in 4 ways, for example, as 117353889 + 388247616 = 10833^2 + 19704^2 .

It is not a de Polignac number, because 505601505 - 2¹³ = 505593313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329694 + ... + 331223.

It is an arithmetic number, because the mean of its divisors is an integer number (38663703).

Almost surely, 2^505601505 is an apocalyptic number.

It is an amenable number.

505601505 is a deficient number, since it is larger than the sum of its proper divisors (422327367).

505601505 is a wasteful number, since it uses less digits than its factorization.

505601505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660945 (or 660942 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 505601505 is about 22485.5843819991. The cubic root of 505601505 is about 796.6534709703.

The spelling of 505601505 in words is "five hundred five million, six hundred one thousand, five hundred five".