52320407 has 8 divisors (see below), whose sum is σ = 55753776. Its totient is φ = 48926592.

The previous prime is 52320391. The next prime is 52320409. The reversal of 52320407 is 70402325.

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 52320407 - 2⁴ = 52320391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52320409) 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, 7133 + ... + 12470.

It is an arithmetic number, because the mean of its divisors is an integer number (6969222).

Almost surely, 2^52320407 is an apocalyptic number.

52320407 is a deficient number, since it is larger than the sum of its proper divisors (3433369).

52320407 is a wasteful number, since it uses less digits than its factorization.

52320407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19777.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 52320407 is about 7233.2846618946. The cubic root of 52320407 is about 374.0161636184.

The spelling of 52320407 in words is "fifty-two million, three hundred twenty thousand, four hundred seven".