55060091 has 4 divisors (see below), whose sum is σ = 57454032. Its totient is φ = 52666152.

The previous prime is 55060087. The next prime is 55060111. The reversal of 55060091 is 19006055.

55060091 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, and also an emirpimes, since its reverse is a distinct semiprime: 19006055 = 5 ⋅3801211.

It is a cyclic number.

It is not a de Polignac number, because 55060091 - 2² = 55060087 is a prime.

It is a super-2 number, since 2×55060091² = 6063227241856562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55060091.

It is not an unprimeable number, because it can be changed into a prime (55060021) 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, 1196936 + ... + 1196981.

It is an arithmetic number, because the mean of its divisors is an integer number (14363508).

Almost surely, 2^55060091 is an apocalyptic number.

55060091 is a deficient number, since it is larger than the sum of its proper divisors (2393941).

55060091 is a wasteful number, since it uses less digits than its factorization.

55060091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393940.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 55060091 is about 7420.2487155081. The cubic root of 55060091 is about 380.4336945861.

The spelling of 55060091 in words is "fifty-five million, sixty thousand, ninety-one".