55510313 has 2 divisors, whose sum is σ = 55510314. Its totient is φ = 55510312.

The previous prime is 55510289. The next prime is 55510331. The reversal of 55510313 is 31301555.

Together with next prime (55510331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54361129 + 1149184 = 7373^2 + 1072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55510313 is a prime.

It is not a weakly prime, because it can be changed into another prime (55510363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755156 + 27755157.

It is an arithmetic number, because the mean of its divisors is an integer number (27755157).

Almost surely, 2^55510313 is an apocalyptic number.

It is an amenable number.

55510313 is a deficient number, since it is larger than the sum of its proper divisors (1).

55510313 is an equidigital number, since it uses as much as digits as its factorization.

55510313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 55510313 is about 7450.5243439640. The cubic root of 55510313 is about 381.4678064591.

Adding to 55510313 its reverse (31301555), we get a palindrome (86811868).

The spelling of 55510313 in words is "fifty-five million, five hundred ten thousand, three hundred thirteen".