55255305 has 32 divisors (see below), whose sum is σ = 101954304. Its totient is φ = 25030656.

The previous prime is 55255303. The next prime is 55255307. The reversal of 55255305 is 50355255.

It is an interprime number because it is at equal distance from previous prime (55255303) and next prime (55255307).

It is not a de Polignac number, because 55255305 - 2¹ = 55255303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55255303) 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, 9537 + ... + 14193.

It is an arithmetic number, because the mean of its divisors is an integer number (3186072).

Almost surely, 2^55255305 is an apocalyptic number.

It is an amenable number.

55255305 is a deficient number, since it is larger than the sum of its proper divisors (46698999).

55255305 is a wasteful number, since it uses less digits than its factorization.

55255305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 55255305 is about 7433.3912180108. The cubic root of 55255305 is about 380.8827699210.

The spelling of 55255305 in words is "fifty-five million, two hundred fifty-five thousand, three hundred five".