1004253203520 has 336 divisors, whose sum is σ = 3950371421568. Its totient is φ = 229386608640.

The previous prime is 1004253203491. The next prime is 1004253203537. The reversal of 1004253203520 is 253023524001.

It is a happy number.

1004253203520 is a `hidden beast` number, since 10 + 0 + 425 + 3 + 203 + 5 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30848692 + ... + 30881228.

Almost surely, 2^{1004253203520} is an apocalyptic number.

1004253203520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004253203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975185710784).

1004253203520 is an abundant number, since it is smaller than the sum of its proper divisors (2946118218048).

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

1004253203520 is a wasteful number, since it uses less digits than its factorization.

1004253203520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34098 (or 34085 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 1004253203520 its reverse (253023524001), we get a palindrome (1257276727521).

The spelling of 1004253203520 in words is "one trillion, four billion, two hundred fifty-three million, two hundred three thousand, five hundred twenty".