55132720325 has 6 divisors (see below), whose sum is σ = 68364573234. Its totient is φ = 44106176240.

The previous prime is 55132720289. The next prime is 55132720361. The reversal of 55132720325 is 52302723155.

It is an interprime number because it is at equal distance from previous prime (55132720289) and next prime (55132720361).

It can be written as a sum of positive squares in 3 ways, for example, as 13370528161 + 41762192164 = 115631^2 + 204358^2 .

It is not a de Polignac number, because 55132720325 - 2¹² = 55132716229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102654382 + ... + 1102654431.

It is an arithmetic number, because the mean of its divisors is an integer number (11394095539).

Almost surely, 2^55132720325 is an apocalyptic number.

It is an amenable number.

55132720325 is a deficient number, since it is larger than the sum of its proper divisors (13231852909).

55132720325 is a wasteful number, since it uses less digits than its factorization.

55132720325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205308823 (or 2205308818 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 55132720325 in words is "fifty-five billion, one hundred thirty-two million, seven hundred twenty thousand, three hundred twenty-five".