1521040055000 has 80 divisors (see below), whose sum is σ = 3565457907000. Its totient is φ = 608132448000.

The previous prime is 1521040054951. The next prime is 1521040055011. The reversal of 1521040055000 is 5500401251.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10825196 + ... + 10964804.

Almost surely, 2^{1521040055000} is an apocalyptic number.

1521040055000 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 1521040055000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782728953500).

1521040055000 is an abundant number, since it is smaller than the sum of its proper divisors (2044417852000).

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

1521040055000 is a wasteful number, since it uses less digits than its factorization.

1521040055000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141814 (or 141795 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 1521040055000 its reverse (5500401251), we get a palindrome (1526540456251).

The spelling of 1521040055000 in words is "one trillion, five hundred twenty-one billion, forty million, fifty-five thousand".