5155270416221 has 4 divisors (see below), whose sum is σ = 5208417534012. Its totient is φ = 5102123298432.

The previous prime is 5155270416193. The next prime is 5155270416239. The reversal of 5155270416221 is 1226140725515.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 828079980121 + 4327190436100 = 909989^2 + 2080190^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155270416221 - 2¹⁴ = 5155270399837 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 (5155270416251) 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 3 ways as a sum of consecutive naturals, for example, 26573558750 + ... + 26573558943.

It is an arithmetic number, because the mean of its divisors is an integer number (1302104383503).

Almost surely, 2^{5155270416221} is an apocalyptic number.

It is an amenable number.

5155270416221 is a deficient number, since it is larger than the sum of its proper divisors (53147117791).

5155270416221 is an equidigital number, since it uses as much as digits as its factorization.

5155270416221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53147117790.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 5155270416221 in words is "five trillion, one hundred fifty-five billion, two hundred seventy million, four hundred sixteen thousand, two hundred twenty-one".