55302775 has 12 divisors (see below), whose sum is σ = 74809944. Its totient is φ = 40220000.

The previous prime is 55302763. The next prime is 55302781. The reversal of 55302775 is 57720355.

It is not a de Polignac number, because 55302775 - 2⁹ = 55302263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55302775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100276 + ... + 100825.

It is an arithmetic number, because the mean of its divisors is an integer number (6234162).

Almost surely, 2^55302775 is an apocalyptic number.

55302775 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55302775 is a deficient number, since it is larger than the sum of its proper divisors (19507169).

55302775 is a wasteful number, since it uses less digits than its factorization.

55302775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201122 (or 201117 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 34.

The square root of 55302775 is about 7436.5835569837. The cubic root of 55302775 is about 380.9918112150.

The spelling of 55302775 in words is "fifty-five million, three hundred two thousand, seven hundred seventy-five".