55099305 has 32 divisors (see below), whose sum is σ = 99313920. Its totient is φ = 28978560.

The previous prime is 55099267. The next prime is 55099309. The reversal of 55099305 is 50399055.

It is not a de Polignac number, because 55099305 - 2⁶ = 55099241 is a prime.

It is a super-2 number, since 2×55099305² = 6071866822966050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55099305.

It is not an unprimeable number, because it can be changed into a prime (55099309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7060 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (3103560).

Almost surely, 2^55099305 is an apocalyptic number.

It is an amenable number.

55099305 is a deficient number, since it is larger than the sum of its proper divisors (44214615).

55099305 is a wasteful number, since it uses less digits than its factorization.

55099305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 30375, while the sum is 36.

The square root of 55099305 is about 7422.8906094594. The cubic root of 55099305 is about 380.5239885806.

The spelling of 55099305 in words is "fifty-five million, ninety-nine thousand, three hundred five".