53172277 has 4 divisors (see below), whose sum is σ = 56300076. Its totient is φ = 50044480.

The previous prime is 53172247. The next prime is 53172313. The reversal of 53172277 is 77227135.

It is a happy number.

53172277 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: 77227135 = 5 ⋅15445427.

It can be written as a sum of positive squares in 2 ways, for example, as 48566961 + 4605316 = 6969^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 53172277 - 2⁷ = 53172149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53172247) 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, 1563874 + ... + 1563907.

It is an arithmetic number, because the mean of its divisors is an integer number (14075019).

Almost surely, 2^53172277 is an apocalyptic number.

It is an amenable number.

53172277 is a deficient number, since it is larger than the sum of its proper divisors (3127799).

53172277 is a wasteful number, since it uses less digits than its factorization.

53172277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127798.

The product of its digits is 20580, while the sum is 34.

The square root of 53172277 is about 7291.9323227797. The cubic root of 53172277 is about 376.0351299793.

The spelling of 53172277 in words is "fifty-three million, one hundred seventy-two thousand, two hundred seventy-seven".