1005253352450 has 48 divisors (see below), whose sum is σ = 1918697211144. Its totient is φ = 391613644800.

The previous prime is 1005253352429. The next prime is 1005253352483. The reversal of 1005253352450 is 542533525001.

It can be written as a sum of positive squares in 12 ways, for example, as 185991225289 + 819262127161 = 431267^2 + 905131^2 .

It is a super-2 number, since 2×1005253352450² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005253352450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 757922 + ... + 1607778.

Almost surely, 2^{1005253352450} is an apocalyptic number.

1005253352450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005253352450 is a deficient number, since it is larger than the sum of its proper divisors (913443858694).

1005253352450 is a wasteful number, since it uses less digits than its factorization.

1005253352450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850487 (or 850482 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 1005253352450 its reverse (542533525001), we get a palindrome (1547786877451).

The spelling of 1005253352450 in words is "one trillion, five billion, two hundred fifty-three million, three hundred fifty-two thousand, four hundred fifty".