505550020770 has 72 divisors (see below), whose sum is σ = 1387251752796. Its totient is φ = 127717891776.

The previous prime is 505550020753. The next prime is 505550020777. The reversal of 505550020770 is 77020055505.

It can be written as a sum of positive squares in 2 ways, for example, as 444831639849 + 60718380921 = 666957^2 + 246411^2 .

It is not an unprimeable number, because it can be changed into a prime (505550020777) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7747597 + ... + 7812576.

Almost surely, 2^505550020770 is an apocalyptic number.

505550020770 is an abundant number, since it is smaller than the sum of its proper divisors (881701732026).

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

505550020770 is a wasteful number, since it uses less digits than its factorization.

505550020770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15560224 (or 15560202 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The spelling of 505550020770 in words is "five hundred five billion, five hundred fifty million, twenty thousand, seven hundred seventy".