53172307 has 4 divisors (see below), whose sum is σ = 53188240. Its totient is φ = 53156376.

The previous prime is 53172247. The next prime is 53172313. The reversal of 53172307 is 70327135.

53172307 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: 70327135 = 5 ⋅14065427.

It is a cyclic number.

It is not a de Polignac number, because 53172307 - 2⁷ = 53172179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53170307) 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, 828 + ... + 10345.

It is an arithmetic number, because the mean of its divisors is an integer number (13297060).

Almost surely, 2^53172307 is an apocalyptic number.

53172307 is a deficient number, since it is larger than the sum of its proper divisors (15933).

53172307 is a wasteful number, since it uses less digits than its factorization.

53172307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15932.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 53172307 is about 7291.9343798474. The cubic root of 53172307 is about 376.0352006995.

The spelling of 53172307 in words is "fifty-three million, one hundred seventy-two thousand, three hundred seven".