2320521 has 8 divisors (see below), whose sum is σ = 3536064. Its totient is φ = 1326000.

The previous prime is 2320519. The next prime is 2320543. The reversal of 2320521 is 1250232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2320521 - 2¹ = 2320519 is a prime.

It is a super-2 number, since 2×2320521² = 10769635422882, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 2320521.

It is not an unprimeable number, because it can be changed into a prime (2320511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55230 + ... + 55271.

It is an arithmetic number, because the mean of its divisors is an integer number (442008).

2^2320521 is an apocalyptic number.

2320521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2320521 is a deficient number, since it is larger than the sum of its proper divisors (1215543).

2320521 is a wasteful number, since it uses less digits than its factorization.

2320521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110511.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2320521 is about 1523.3256382008. The cubic root of 2320521 is about 132.3920278573.

Adding to 2320521 its reverse (1250232), we get a palindrome (3570753).

The spelling of 2320521 in words is "two million, three hundred twenty thousand, five hundred twenty-one".