505105599 has 24 divisors (see below), whose sum is σ = 726810112. Its totient is φ = 311675760.

The previous prime is 505105597. The next prime is 505105603. The reversal of 505105599 is 995501505.

It is a happy number.

It is not a de Polignac number, because 505105599 - 2¹ = 505105597 is a prime.

It is a super-2 number, since 2×505105599² = 510263332282297602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505105597) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44064 + ... + 54330.

Almost surely, 2^505105599 is an apocalyptic number.

505105599 is a deficient number, since it is larger than the sum of its proper divisors (221704513).

505105599 is a wasteful number, since it uses less digits than its factorization.

505105599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10347 (or 10324 counting only the distinct ones).

The product of its (nonzero) digits is 50625, while the sum is 39.

The square root of 505105599 is about 22474.5544783428. The cubic root of 505105599 is about 796.3929268686.

The spelling of 505105599 in words is "five hundred five million, one hundred five thousand, five hundred ninety-nine".