52320073 has 8 divisors (see below), whose sum is σ = 56556416. Its totient is φ = 48114000.

The previous prime is 52320061. The next prime is 52320077. The reversal of 52320073 is 37002325.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52320073 - 2²⁵ = 18765641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52320077) 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, 3903 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (7069552).

Almost surely, 2^52320073 is an apocalyptic number.

It is an amenable number.

52320073 is a deficient number, since it is larger than the sum of its proper divisors (4236343).

52320073 is a wasteful number, since it uses less digits than its factorization.

52320073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 52320073 is about 7233.2615741448. The cubic root of 52320073 is about 374.0153677424.

Adding to 52320073 its reverse (37002325), we get a palindrome (89322398).

The spelling of 52320073 in words is "fifty-two million, three hundred twenty thousand, seventy-three".