55509053 has 2 divisors, whose sum is σ = 55509054. Its totient is φ = 55509052.

The previous prime is 55509037. The next prime is 55509059. The reversal of 55509053 is 35090555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 4214809 = 7162^2 + 2053^2 .

It is a cyclic number.

It is not a de Polignac number, because 55509053 - 2⁴ = 55509037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55509059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27754526 + 27754527.

It is an arithmetic number, because the mean of its divisors is an integer number (27754527).

Almost surely, 2^55509053 is an apocalyptic number.

It is an amenable number.

55509053 is a deficient number, since it is larger than the sum of its proper divisors (1).

55509053 is an equidigital number, since it uses as much as digits as its factorization.

55509053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16875, while the sum is 32.

The square root of 55509053 is about 7450.4397856771. The cubic root of 55509053 is about 381.4649201901.

The spelling of 55509053 in words is "fifty-five million, five hundred nine thousand, fifty-three".