322520725 has 24 divisors (see below), whose sum is σ = 427914080. Its totient is φ = 240408000.

The previous prime is 322520713. The next prime is 322520729. The reversal of 322520725 is 527025223.

It is not a de Polignac number, because 322520725 - 2⁹ = 322520213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 322520693 and 322520702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322520729) 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, 23410 + ... + 34540.

Almost surely, 2^322520725 is an apocalyptic number.

It is an amenable number.

322520725 is a deficient number, since it is larger than the sum of its proper divisors (105393355).

322520725 is a wasteful number, since it uses less digits than its factorization.

322520725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221 (or 11216 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 322520725 is about 17958.8620185133. The cubic root of 322520725 is about 685.7816746664.

Adding to 322520725 its reverse (527025223), we get a palindrome (849545948).

The spelling of 322520725 in words is "three hundred twenty-two million, five hundred twenty thousand, seven hundred twenty-five".