55250053 has 2 divisors, whose sum is σ = 55250054. Its totient is φ = 55250052.

The previous prime is 55250047. The next prime is 55250077. The reversal of 55250053 is 35005255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36397089 + 18852964 = 6033^2 + 4342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55250053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55250003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27625026 + 27625027.

It is an arithmetic number, because the mean of its divisors is an integer number (27625027).

Almost surely, 2^55250053 is an apocalyptic number.

It is an amenable number.

55250053 is a deficient number, since it is larger than the sum of its proper divisors (1).

55250053 is an equidigital number, since it uses as much as digits as its factorization.

55250053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 55250053 is about 7433.0379388242. The cubic root of 55250053 is about 380.8707019413.

It can be divided in two parts, 552 and 50053, that added together give a palindrome (50605).

The spelling of 55250053 in words is "fifty-five million, two hundred fifty thousand, fifty-three".