505560136 has 8 divisors (see below), whose sum is σ = 947925270. Its totient is φ = 252780064.

The previous prime is 505560109. The next prime is 505560137. The reversal of 505560136 is 631065505.

It can be written as a sum of positive squares in only one way, i.e., 333792900 + 171767236 = 18270^2 + 13106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×505560136² = 511182102224676992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505560098 and 505560107.

It is not an unprimeable number, because it can be changed into a prime (505560137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31597501 + ... + 31597516.

Almost surely, 2^505560136 is an apocalyptic number.

It is an amenable number.

505560136 is a deficient number, since it is larger than the sum of its proper divisors (442365134).

505560136 is a wasteful number, since it uses less digits than its factorization.

505560136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63195023 (or 63195019 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 505560136 is about 22484.6644626955. The cubic root of 505560136 is about 796.6317426223.

The spelling of 505560136 in words is "five hundred five million, five hundred sixty thousand, one hundred thirty-six".