55550273 has 2 divisors, whose sum is σ = 55550274. Its totient is φ = 55550272.

The previous prime is 55550263. The next prime is 55550279. The reversal of 55550273 is 37205555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48330304 + 7219969 = 6952^2 + 2687^2 .

It is a cyclic number.

It is not a de Polignac number, because 55550273 - 2⁸ = 55550017 is a prime.

It is a super-3 number, since 3×55550273³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55550279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775136 + 27775137.

It is an arithmetic number, because the mean of its divisors is an integer number (27775137).

Almost surely, 2^55550273 is an apocalyptic number.

It is an amenable number.

55550273 is a deficient number, since it is larger than the sum of its proper divisors (1).

55550273 is an equidigital number, since it uses as much as digits as its factorization.

55550273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 55550273 is about 7453.2055519756. The cubic root of 55550273 is about 381.5593197679.

The spelling of 55550273 in words is "fifty-five million, five hundred fifty thousand, two hundred seventy-three".