55356949 has 2 divisors, whose sum is σ = 55356950. Its totient is φ = 55356948.

The previous prime is 55356877. The next prime is 55356991. The reversal of 55356949 is 94965355.

55356949 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., 36216324 + 19140625 = 6018^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 55356949 - 2²¹ = 53259797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55356899 and 55356908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55356149) 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, 27678474 + 27678475.

It is an arithmetic number, because the mean of its divisors is an integer number (27678475).

Almost surely, 2^55356949 is an apocalyptic number.

It is an amenable number.

55356949 is a deficient number, since it is larger than the sum of its proper divisors (1).

55356949 is an equidigital number, since it uses as much as digits as its factorization.

55356949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729000, while the sum is 46.

The square root of 55356949 is about 7440.2250638002. The cubic root of 55356949 is about 381.1161757671.

The spelling of 55356949 in words is "fifty-five million, three hundred fifty-six thousand, nine hundred forty-nine".