55305255 has 16 divisors (see below), whose sum is σ = 88595424. Its totient is φ = 29460480.

The previous prime is 55305253. The next prime is 55305259. The reversal of 55305255 is 55250355.

It is not a de Polignac number, because 55305255 - 2¹ = 55305253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14775 + ... + 18135.

It is an arithmetic number, because the mean of its divisors is an integer number (5537214).

Almost surely, 2^55305255 is an apocalyptic number.

55305255 is a deficient number, since it is larger than the sum of its proper divisors (33290169).

55305255 is a wasteful number, since it uses less digits than its factorization.

55305255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4466.

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

The square root of 55305255 is about 7436.7502983494. The cubic root of 55305255 is about 380.9975062009.

The spelling of 55305255 in words is "fifty-five million, three hundred five thousand, two hundred fifty-five".