55056505 has 16 divisors (see below), whose sum is σ = 77114880. Its totient is φ = 36948672.

The previous prime is 55056493. The next prime is 55056517. The reversal of 55056505 is 50565055.

It is an interprime number because it is at equal distance from previous prime (55056493) and next prime (55056517).

It is a cyclic number.

It is not a de Polignac number, because 55056505 - 2⁹ = 55055993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15090 + ... + 18379.

It is an arithmetic number, because the mean of its divisors is an integer number (4819680).

Almost surely, 2^55056505 is an apocalyptic number.

It is an amenable number.

55056505 is a deficient number, since it is larger than the sum of its proper divisors (22058375).

55056505 is a wasteful number, since it uses less digits than its factorization.

55056505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33528.

The product of its (nonzero) digits is 18750, while the sum is 31.

The square root of 55056505 is about 7420.0070754683. The cubic root of 55056505 is about 380.4254353380.

The spelling of 55056505 in words is "fifty-five million, fifty-six thousand, five hundred five".