53173971 has 12 divisors (see below), whose sum is σ = 77526072. Its totient is φ = 35117376.

The previous prime is 53173963. The next prime is 53173973. The reversal of 53173971 is 17937135.

It is not a de Polignac number, because 53173971 - 2³ = 53173963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53173973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26646 + ... + 28571.

It is an arithmetic number, because the mean of its divisors is an integer number (6460506).

Almost surely, 2^53173971 is an apocalyptic number.

53173971 is a deficient number, since it is larger than the sum of its proper divisors (24352101).

53173971 is a wasteful number, since it uses less digits than its factorization.

53173971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55330 (or 55327 counting only the distinct ones).

The product of its digits is 19845, while the sum is 36.

The square root of 53173971 is about 7292.0484776227. The cubic root of 53173971 is about 376.0391232680.

The spelling of 53173971 in words is "fifty-three million, one hundred seventy-three thousand, nine hundred seventy-one".