55122653 has 4 divisors (see below), whose sum is σ = 58365180. Its totient is φ = 51880128.

The previous prime is 55122647. The next prime is 55122659. The reversal of 55122653 is 35622155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35622155 = 5 ⋅7124431.

It is an interprime number because it is at equal distance from previous prime (55122647) and next prime (55122659).

It can be written as a sum of positive squares in 2 ways, for example, as 46607929 + 8514724 = 6827^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 55122653 - 2¹⁰ = 55121629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55122659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621238 + ... + 1621271.

It is an arithmetic number, because the mean of its divisors is an integer number (14591295).

Almost surely, 2^55122653 is an apocalyptic number.

It is an amenable number.

55122653 is a deficient number, since it is larger than the sum of its proper divisors (3242527).

55122653 is a wasteful number, since it uses less digits than its factorization.

55122653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242526.

The product of its digits is 9000, while the sum is 29.

The square root of 55122653 is about 7424.4631455749. The cubic root of 55122653 is about 380.5777292432.

The spelling of 55122653 in words is "fifty-five million, one hundred twenty-two thousand, six hundred fifty-three".