55105051 has 4 divisors (see below), whose sum is σ = 55121472. Its totient is φ = 55088632.

The previous prime is 55105049. The next prime is 55105067. The reversal of 55105051 is 15050155.

55105051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55105051 - 2¹ = 55105049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55105031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1156 + ... + 10561.

It is an arithmetic number, because the mean of its divisors is an integer number (13780368).

Almost surely, 2^55105051 is an apocalyptic number.

55105051 is a deficient number, since it is larger than the sum of its proper divisors (16421).

55105051 is a wasteful number, since it uses less digits than its factorization.

55105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16420.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 55105051 is about 7423.2776453532. The cubic root of 55105051 is about 380.5372156975.

The spelling of 55105051 in words is "fifty-five million, one hundred five thousand, fifty-one".