1005052452520 has 16 divisors (see below), whose sum is σ = 2261368018260. Its totient is φ = 402020980992.

The previous prime is 1005052452473. The next prime is 1005052452539. The reversal of 1005052452520 is 252542505001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 953517096324 + 51535356196 = 976482^2 + 227014^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12563155617 + ... + 12563155696.

Almost surely, 2^{1005052452520} is an apocalyptic number.

1005052452520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005052452520 is an abundant number, since it is smaller than the sum of its proper divisors (1256315565740).

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

1005052452520 is a wasteful number, since it uses less digits than its factorization.

1005052452520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25126311324 (or 25126311320 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 1005052452520 its reverse (252542505001), we get a palindrome (1257594957521).

The spelling of 1005052452520 in words is "one trillion, five billion, fifty-two million, four hundred fifty-two thousand, five hundred twenty".