2320551 has 24 divisors (see below), whose sum is σ = 3678480. Its totient is φ = 1403136.

The previous prime is 2320547. The next prime is 2320553. The reversal of 2320551 is 1550232.

It is a happy number.

2320551 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 2320551 - 2² = 2320547 is a prime.

2320551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320553) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4176 + ... + 4698.

It is an arithmetic number, because the mean of its divisors is an integer number (153270).

2^2320551 is an apocalyptic number.

2320551 is a deficient number, since it is larger than the sum of its proper divisors (1357929).

2320551 is a wasteful number, since it uses less digits than its factorization.

2320551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2320551 is about 1523.3354850459. The cubic root of 2320551 is about 132.3925983820.

Adding to 2320551 its reverse (1550232), we get a palindrome (3870783).

The spelling of 2320551 in words is "two million, three hundred twenty thousand, five hundred fifty-one".