52409172 has 12 divisors (see below), whose sum is σ = 122288096. Its totient is φ = 17469720.

The previous prime is 52409171. The next prime is 52409191. The reversal of 52409172 is 27190425.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52409171) 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, 2183704 + ... + 2183727.

Almost surely, 2^52409172 is an apocalyptic number.

It is an amenable number.

52409172 is an abundant number, since it is smaller than the sum of its proper divisors (69878924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52409172 is a wasteful number, since it uses less digits than its factorization.

52409172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367438 (or 4367436 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 52409172 is about 7239.4179324031. The cubic root of 52409172 is about 374.2275584276.

Adding to 52409172 its reverse (27190425), we get a palindrome (79599597).

The spelling of 52409172 in words is "fifty-two million, four hundred nine thousand, one hundred seventy-two".