55065313 has 2 divisors, whose sum is σ = 55065314. Its totient is φ = 55065312.

The previous prime is 55065299. The next prime is 55065319. The reversal of 55065313 is 31356055.

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., 37859409 + 17205904 = 6153^2 + 4148^2 .

It is a cyclic number.

It is not a de Polignac number, because 55065313 - 2⁵ = 55065281 is a prime.

It is equal to p_3285901 and since 55065313 and 3285901 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55065319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27532656 + 27532657.

It is an arithmetic number, because the mean of its divisors is an integer number (27532657).

Almost surely, 2^55065313 is an apocalyptic number.

It is an amenable number.

55065313 is a deficient number, since it is larger than the sum of its proper divisors (1).

55065313 is an equidigital number, since it uses as much as digits as its factorization.

55065313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 55065313 is about 7420.6005821631. The cubic root of 55065313 is about 380.4457212156.

The spelling of 55065313 in words is "fifty-five million, sixty-five thousand, three hundred thirteen".