1520521521132 has 48 divisors (see below), whose sum is σ = 3570510458592. Its totient is φ = 503614755840.

The previous prime is 1520521521083. The next prime is 1520521521151. The reversal of 1520521521132 is 2311251250251.

It is a super-2 number, since 2×1520521521132² (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 1520521521132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411332 + ... + 2243412.

It is an arithmetic number, because the mean of its divisors is an integer number (74385634554).

Almost surely, 2^{1520521521132} is an apocalyptic number.

1520521521132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1520521521132 is an abundant number, since it is smaller than the sum of its proper divisors (2049988937460).

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

1520521521132 is a wasteful number, since it uses less digits than its factorization.

1520521521132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833058 (or 833056 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 1520521521132 its reverse (2311251250251), we get a palindrome (3831772771383).

The spelling of 1520521521132 in words is "one trillion, five hundred twenty billion, five hundred twenty-one million, five hundred twenty-one thousand, one hundred thirty-two".