1520002550000 has 480 divisors, whose sum is σ = 4166981921088. Its totient is φ = 532224000000.

The previous prime is 1520002549999. The next prime is 1520002550117. The reversal of 1520002550000 is 552000251.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2299549670 + ... + 2299550330.

Almost surely, 2^{1520002550000} is an apocalyptic number.

1520002550000 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 1520002550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2083490960544).

1520002550000 is an abundant number, since it is smaller than the sum of its proper divisors (2646979371088).

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

1520002550000 is a wasteful number, since it uses less digits than its factorization.

1520002550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

Adding to 1520002550000 its reverse (552000251), we get a palindrome (1520554550251).

The spelling of 1520002550000 in words is "one trillion, five hundred twenty billion, two million, five hundred fifty thousand".