5274412155221 has 6 divisors (see below), whose sum is σ = 5797494352566. Its totient is φ = 4794920141000.

The previous prime is 5274412155211. The next prime is 5274412155223. The reversal of 5274412155221 is 1225512144725.

It can be written as a sum of positive squares in only one way, i.e., 3365441616196 + 1908970539025 = 1834514^2 + 1381655^2 .

It is not a de Polignac number, because 5274412155221 - 2¹⁰ = 5274412154197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5274412155223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21795091430 + ... + 21795091671.

It is an arithmetic number, because the mean of its divisors is an integer number (966249058761).

Almost surely, 2^{5274412155221} is an apocalyptic number.

It is an amenable number.

5274412155221 is a deficient number, since it is larger than the sum of its proper divisors (523082197345).

5274412155221 is a wasteful number, since it uses less digits than its factorization.

5274412155221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43590183123 (or 43590183112 counting only the distinct ones).

The product of its digits is 224000, while the sum is 41.

Adding to 5274412155221 its reverse (1225512144725), we get a palindrome (6499924299946).

The spelling of 5274412155221 in words is "five trillion, two hundred seventy-four billion, four hundred twelve million, one hundred fifty-five thousand, two hundred twenty-one".