7325506821 has 8 divisors (see below), whose sum is σ = 9802604704. Its totient is φ = 4866040080.

The previous prime is 7325506819. The next prime is 7325506823. The reversal of 7325506821 is 1286055237.

It is an interprime number because it is at equal distance from previous prime (7325506819) and next prime (7325506823).

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

It is not a de Polignac number, because 7325506821 - 2¹ = 7325506819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7325506821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7325506823) 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, 4406815 + ... + 4408476.

It is an arithmetic number, because the mean of its divisors is an integer number (1225325588).

Almost surely, 2^7325506821 is an apocalyptic number.

It is an amenable number.

7325506821 is a deficient number, since it is larger than the sum of its proper divisors (2477097883).

7325506821 is a wasteful number, since it uses less digits than its factorization.

7325506821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8815571.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 7325506821 is about 85589.1746718006. The cubic root of 7325506821 is about 1942.1341537744.

The spelling of 7325506821 in words is "seven billion, three hundred twenty-five million, five hundred six thousand, eight hundred twenty-one".