52221125 has 32 divisors (see below), whose sum is σ = 71839872. Its totient is φ = 37584000.

The previous prime is 52221079. The next prime is 52221149. The reversal of 52221125 is 52112225.

It is a happy number.

52221125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52221125 - 2¹² = 52217029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52221097 and 52221106.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 224009 + ... + 224241.

It is an arithmetic number, because the mean of its divisors is an integer number (2244996).

Almost surely, 2^52221125 is an apocalyptic number.

52221125 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52221125 is a deficient number, since it is larger than the sum of its proper divisors (19618747).

52221125 is a wasteful number, since it uses less digits than its factorization.

52221125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 412 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 52221125 is about 7226.4185458635. The cubic root of 52221125 is about 373.7794389998.

Subtracting from 52221125 its reverse (52112225), we obtain a square (108900 = 330²).

The spelling of 52221125 in words is "fifty-two million, two hundred twenty-one thousand, one hundred twenty-five".