1015050020 has 12 divisors (see below), whose sum is σ = 2131605084. Its totient is φ = 406020000.

The previous prime is 1015050017. The next prime is 1015050037. The reversal of 1015050020 is 200505101.

It can be written as a sum of positive squares in 2 ways, for example, as 432889636 + 582160384 = 20806^2 + 24128^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1015049977 and 1015050004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25376231 + ... + 25376270.

It is an arithmetic number, because the mean of its divisors is an integer number (177633757).

Almost surely, 2^1015050020 is an apocalyptic number.

1015050020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015050020 is an abundant number, since it is smaller than the sum of its proper divisors (1116555064).

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

1015050020 is a wasteful number, since it uses less digits than its factorization.

1015050020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50752510 (or 50752508 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1015050020 is about 31859.8496543847. The cubic root of 1015050020 is about 1004.9917146582.

Adding to 1015050020 its reverse (200505101), we get a palindrome (1215555121).

The spelling of 1015050020 in words is "one billion, fifteen million, fifty thousand, twenty".