5221021621560 has 64 divisors (see below), whose sum is σ = 15663377872800. Its totient is φ = 1392244609536.

The previous prime is 5221021621553. The next prime is 5221021621561. The reversal of 5221021621560 is 651261201225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221021621561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5989002 + ... + 6805158.

Almost surely, 2^{5221021621560} is an apocalyptic number.

It is an amenable number.

5221021621560 is an abundant number, since it is smaller than the sum of its proper divisors (10442356251240).

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

5221021621560 is a wasteful number, since it uses less digits than its factorization.

5221021621560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869480 (or 869476 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 5221021621560 its reverse (651261201225), we get a palindrome (5872282822785).

The spelling of 5221021621560 in words is "five trillion, two hundred twenty-one billion, twenty-one million, six hundred twenty-one thousand, five hundred sixty".