55165051 has 4 divisors (see below), whose sum is σ = 58410072. Its totient is φ = 51920032.

The previous prime is 55165021. The next prime is 55165067. The reversal of 55165051 is 15056155.

55165051 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: 15056155 = 5 ⋅3011231.

It is a cyclic number.

It is not a de Polignac number, because 55165051 - 2¹³ = 55156859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55165021) 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, 1622485 + ... + 1622518.

It is an arithmetic number, because the mean of its divisors is an integer number (14602518).

Almost surely, 2^55165051 is an apocalyptic number.

55165051 is a deficient number, since it is larger than the sum of its proper divisors (3245021).

55165051 is a wasteful number, since it uses less digits than its factorization.

55165051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245020.

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

The square root of 55165051 is about 7427.3178873669. The cubic root of 55165051 is about 380.6752789708.

The spelling of 55165051 in words is "fifty-five million, one hundred sixty-five thousand, fifty-one".