55230013 has 2 divisors, whose sum is σ = 55230014. Its totient is φ = 55230012.

The previous prime is 55229989. The next prime is 55230037. The reversal of 55230013 is 31003255.

It is a balanced prime because it is at equal distance from previous prime (55229989) and next prime (55230037).

It can be written as a sum of positive squares in only one way, i.e., 50722884 + 4507129 = 7122^2 + 2123^2 .

It is a cyclic number.

It is not a de Polignac number, because 55230013 - 2⁵ = 55229981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55230053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27615006 + 27615007.

It is an arithmetic number, because the mean of its divisors is an integer number (27615007).

Almost surely, 2^55230013 is an apocalyptic number.

It is an amenable number.

55230013 is a deficient number, since it is larger than the sum of its proper divisors (1).

55230013 is an equidigital number, since it uses as much as digits as its factorization.

55230013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 55230013 is about 7431.6897809314. The cubic root of 55230013 is about 380.8246472532.

Adding to 55230013 its reverse (31003255), we get a palindrome (86233268).

The spelling of 55230013 in words is "fifty-five million, two hundred thirty thousand, thirteen".