21441405052532 has 24 divisors (see below), whose sum is σ = 39352620738816. Its totient is φ = 10202531285408.

The previous prime is 21441405052409. The next prime is 21441405052541. The reversal of 21441405052532 is 23525050414412.

It is a super-2 number, since 2×21441405052532² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591501548 + ... + 591537795.

It is an arithmetic number, because the mean of its divisors is an integer number (1639692530784).

Almost surely, 2^{21441405052532} is an apocalyptic number.

It is an amenable number.

21441405052532 is a deficient number, since it is larger than the sum of its proper divisors (17911215686284).

21441405052532 is a wasteful number, since it uses less digits than its factorization.

21441405052532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183039567 (or 1183039565 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 21441405052532 its reverse (23525050414412), we get a palindrome (44966455466944).

The spelling of 21441405052532 in words is "twenty-one trillion, four hundred forty-one billion, four hundred five million, fifty-two thousand, five hundred thirty-two".