55148699 has 2 divisors, whose sum is σ = 55148700. Its totient is φ = 55148698.

The previous prime is 55148693. The next prime is 55148711. The reversal of 55148699 is 99684155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55148699 - 2⁴ = 55148683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55148693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27574349 + 27574350.

It is an arithmetic number, because the mean of its divisors is an integer number (27574350).

Almost surely, 2^55148699 is an apocalyptic number.

55148699 is a deficient number, since it is larger than the sum of its proper divisors (1).

55148699 is an equidigital number, since it uses as much as digits as its factorization.

55148699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 47.

The square root of 55148699 is about 7426.2170046397. The cubic root of 55148699 is about 380.6376620545.

The spelling of 55148699 in words is "fifty-five million, one hundred forty-eight thousand, six hundred ninety-nine".