505505275530 has 32 divisors (see below), whose sum is σ = 1233101397888. Its totient is φ = 132591547200.

The previous prime is 505505275487. The next prime is 505505275537. The reversal of 505505275530 is 35572505505.

It is a super-2 number, since 2×505505275530² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505505275537) 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, 138114366 + ... + 138118025.

It is an arithmetic number, because the mean of its divisors is an integer number (38534418684).

Almost surely, 2^505505275530 is an apocalyptic number.

505505275530 is an abundant number, since it is smaller than the sum of its proper divisors (727596122358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505505275530 is a wasteful number, since it uses less digits than its factorization.

505505275530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276232462.

The product of its (nonzero) digits is 656250, while the sum is 42.

The spelling of 505505275530 in words is "five hundred five billion, five hundred five million, two hundred seventy-five thousand, five hundred thirty".