52172225 has 48 divisors (see below), whose sum is σ = 78090240. Its totient is φ = 33825600.

The previous prime is 52172171. The next prime is 52172231. The reversal of 52172225 is 52227125.

It is not a de Polignac number, because 52172225 - 2¹⁰ = 52171201 is a prime.

It is a super-2 number, since 2×52172225² = 5443882122901250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52172194 and 52172203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319994 + ... + 320156.

It is an arithmetic number, because the mean of its divisors is an integer number (1626880).

Almost surely, 2^52172225 is an apocalyptic number.

It is an amenable number.

52172225 is a deficient number, since it is larger than the sum of its proper divisors (25918015).

52172225 is a wasteful number, since it uses less digits than its factorization.

52172225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 265 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 52172225 is about 7223.0343346823. The cubic root of 52172225 is about 373.6627332116.

The spelling of 52172225 in words is "fifty-two million, one hundred seventy-two thousand, two hundred twenty-five".