1011520050 has 96 divisors (see below), whose sum is σ = 2554390080. Its totient is φ = 264864000.

The previous prime is 1011520019. The next prime is 1011520067. The reversal of 1011520050 is 500251101.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 47 ways as a sum of consecutive naturals, for example, 2711664 + ... + 2712036.

It is an arithmetic number, because the mean of its divisors is an integer number (26608230).

Almost surely, 2^1011520050 is an apocalyptic number.

1011520050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011520050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277195040).

1011520050 is an abundant number, since it is smaller than the sum of its proper divisors (1542870030).

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

1011520050 is a wasteful number, since it uses less digits than its factorization.

1011520050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1011520050 is about 31804.4029970694. The cubic root of 1011520050 is about 1003.8253645930.

Adding to 1011520050 its reverse (500251101), we get a palindrome (1511771151).

The spelling of 1011520050 in words is "one billion, eleven million, five hundred twenty thousand, fifty".