5503420325421 has 16 divisors (see below), whose sum is σ = 8157214012800. Its totient is φ = 3667147461504.

The previous prime is 5503420325387. The next prime is 5503420325437. The reversal of 5503420325421 is 1245230243055.

5503420325421 is a `hidden beast` number, since 5 + 5 + 0 + 3 + 4 + 203 + 25 + 421 = 666.

It is not a de Polignac number, because 5503420325421 - 2¹⁵ = 5503420292653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5503420325321) 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, 49927876 + ... + 50037981.

It is an arithmetic number, because the mean of its divisors is an integer number (509825875800).

Almost surely, 2^{5503420325421} is an apocalyptic number.

It is an amenable number.

5503420325421 is a deficient number, since it is larger than the sum of its proper divisors (2653793687379).

5503420325421 is a wasteful number, since it uses less digits than its factorization.

5503420325421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99967905 (or 99967899 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 5503420325421 its reverse (1245230243055), we get a palindrome (6748650568476).

The spelling of 5503420325421 in words is "five trillion, five hundred three billion, four hundred twenty million, three hundred twenty-five thousand, four hundred twenty-one".