1552513021044 has 48 divisors (see below), whose sum is σ = 3631544495040. Its totient is φ = 516217328640.

The previous prime is 1552513021009. The next prime is 1552513021049. The reversal of 1552513021044 is 4401203152551.

It is a super-2 number, since 2×1552513021044² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1552513020996 and 1552513021014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552513021049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17985732 + ... + 18071844.

It is an arithmetic number, because the mean of its divisors is an integer number (75657176980).

Almost surely, 2^{1552513021044} is an apocalyptic number.

It is an amenable number.

1552513021044 is an abundant number, since it is smaller than the sum of its proper divisors (2079031473996).

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

1552513021044 is a wasteful number, since it uses less digits than its factorization.

1552513021044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89840 (or 89838 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1552513021044 its reverse (4401203152551), we get a palindrome (5953716173595).

The spelling of 1552513021044 in words is "one trillion, five hundred fifty-two billion, five hundred thirteen million, twenty-one thousand, forty-four".