53280172 has 18 divisors (see below), whose sum is σ = 102488204. Its totient is φ = 24218040.

The previous prime is 53280169. The next prime is 53280173. The reversal of 53280172 is 27108235.

It is a self number, because there is not a number n which added to its sum of digits gives 53280172.

It is not an unprimeable number, because it can be changed into a prime (53280173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54558 + ... + 55525.

Almost surely, 2^53280172 is an apocalyptic number.

It is an amenable number.

53280172 is a deficient number, since it is larger than the sum of its proper divisors (49208032).

53280172 is a wasteful number, since it uses less digits than its factorization.

53280172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110109 (or 110096 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 53280172 is about 7299.3268182758. The cubic root of 53280172 is about 376.2893031499.

The spelling of 53280172 in words is "fifty-three million, two hundred eighty thousand, one hundred seventy-two".