485550820 has 12 divisors (see below), whose sum is σ = 1019656764. Its totient is φ = 194220320.

The previous prime is 485550739. The next prime is 485550829. The reversal of 485550820 is 28055584.

It can be written as a sum of positive squares in 2 ways, for example, as 269813476 + 215737344 = 16426^2 + 14688^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 485550820.

It is not an unprimeable number, because it can be changed into a prime (485550829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138751 + ... + 12138790.

It is an arithmetic number, because the mean of its divisors is an integer number (84971397).

Almost surely, 2^485550820 is an apocalyptic number.

It is an amenable number.

485550820 is an abundant number, since it is smaller than the sum of its proper divisors (534105944).

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

485550820 is a wasteful number, since it uses less digits than its factorization.

485550820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24277550 (or 24277548 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 485550820 is about 22035.2177207306. The cubic root of 485550820 is about 785.9801245441.

The spelling of 485550820 in words is "four hundred eighty-five million, five hundred fifty thousand, eight hundred twenty".