55909253 has 2 divisors, whose sum is σ = 55909254. Its totient is φ = 55909252.

The previous prime is 55909237. The next prime is 55909283. The reversal of 55909253 is 35290955.

55909253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52157284 + 3751969 = 7222^2 + 1937^2 .

It is a cyclic number.

It is not a de Polignac number, because 55909253 - 2⁴ = 55909237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55909283) 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, 27954626 + 27954627.

It is an arithmetic number, because the mean of its divisors is an integer number (27954627).

Almost surely, 2^55909253 is an apocalyptic number.

It is an amenable number.

55909253 is a deficient number, since it is larger than the sum of its proper divisors (1).

55909253 is an equidigital number, since it uses as much as digits as its factorization.

55909253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 55909253 is about 7477.2490262128. The cubic root of 55909253 is about 382.3794667705.

The spelling of 55909253 in words is "fifty-five million, nine hundred nine thousand, two hundred fifty-three".