55061155 has 12 divisors (see below), whose sum is σ = 67734576. Its totient is φ = 42968000.

The previous prime is 55061137. The next prime is 55061159. The reversal of 55061155 is 55116055.

It is not a de Polignac number, because 55061155 - 2¹⁵ = 55028387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55061159) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5130 + ... + 11680.

It is an arithmetic number, because the mean of its divisors is an integer number (5644548).

Almost surely, 2^55061155 is an apocalyptic number.

55061155 is a deficient number, since it is larger than the sum of its proper divisors (12673421).

55061155 is an equidigital number, since it uses as much as digits as its factorization.

55061155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638 (or 6597 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 55061155 is about 7420.3204108718. The cubic root of 55061155 is about 380.4361451138.

The spelling of 55061155 in words is "fifty-five million, sixty-one thousand, one hundred fifty-five".