55947313 has 2 divisors, whose sum is σ = 55947314. Its totient is φ = 55947312.

The previous prime is 55947299. The next prime is 55947319. The reversal of 55947313 is 31374955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40360609 + 15586704 = 6353^2 + 3948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55947313 is a prime.

It is not a weakly prime, because it can be changed into another prime (55947319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27973656 + 27973657.

It is an arithmetic number, because the mean of its divisors is an integer number (27973657).

Almost surely, 2^55947313 is an apocalyptic number.

It is an amenable number.

55947313 is a deficient number, since it is larger than the sum of its proper divisors (1).

55947313 is an equidigital number, since it uses as much as digits as its factorization.

55947313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 55947313 is about 7479.7936468863. The cubic root of 55947313 is about 382.4662148524.

The spelling of 55947313 in words is "fifty-five million, nine hundred forty-seven thousand, three hundred thirteen".