55252705 has 8 divisors (see below), whose sum is σ = 66352104. Its totient is φ = 44169600.

The previous prime is 55252699. The next prime is 55252711. The reversal of 55252705 is 50725255.

55252705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55252699) and next prime (55252711).

It can be written as a sum of positive squares in 4 ways, for example, as 5817744 + 49434961 = 2412^2 + 7031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55252705 - 2¹⁵ = 55219937 is a prime.

It is a super-2 number, since 2×55252705² = 6105722819634050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5395 + ... + 11815.

It is an arithmetic number, because the mean of its divisors is an integer number (8294013).

Almost surely, 2^55252705 is an apocalyptic number.

It is an amenable number.

55252705 is a deficient number, since it is larger than the sum of its proper divisors (11099399).

55252705 is a wasteful number, since it uses less digits than its factorization.

55252705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8147.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 55252705 is about 7433.2163294230. The cubic root of 55252705 is about 380.8767957692.

The spelling of 55252705 in words is "fifty-five million, two hundred fifty-two thousand, seven hundred five".