925221 has 24 divisors (see below), whose sum is σ = 1433376. Its totient is φ = 526240.

The previous prime is 925217. The next prime is 925237. The reversal of 925221 is 122529.

925221 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 925221 - 2² = 925217 is a prime.

Its product of digits (360) is a multiple of the sum of its prime divisors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (925241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17431 + ... + 17483.

It is an arithmetic number, because the mean of its divisors is an integer number (59724).

2⁹²⁵²²¹ is an apocalyptic number.

It is an amenable number.

925221 is a deficient number, since it is larger than the sum of its proper divisors (508155).

925221 is a wasteful number, since it uses less digits than its factorization.

925221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 90 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 925221 is about 961.8840886510. The cubic root of 925221 is about 97.4425170699.

The spelling of 925221 in words is "nine hundred twenty-five thousand, two hundred twenty-one".