55419277 has 2 divisors, whose sum is σ = 55419278. Its totient is φ = 55419276.

The previous prime is 55419241. The next prime is 55419281. The reversal of 55419277 is 77291455.

55419277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45846441 + 9572836 = 6771^2 + 3094^2 .

It is a cyclic number.

It is not a de Polignac number, because 55419277 - 2⁷ = 55419149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55419877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27709638 + 27709639.

It is an arithmetic number, because the mean of its divisors is an integer number (27709639).

Almost surely, 2^55419277 is an apocalyptic number.

It is an amenable number.

55419277 is a deficient number, since it is larger than the sum of its proper divisors (1).

55419277 is an equidigital number, since it uses as much as digits as its factorization.

55419277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 55419277 is about 7444.4124684222. The cubic root of 55419277 is about 381.2591587157.

It can be divided in two parts, 55419 and 277, that added together give a square (55696 = 236²).

The spelling of 55419277 in words is "fifty-five million, four hundred nineteen thousand, two hundred seventy-seven".