53319307 has 4 divisors (see below), whose sum is σ = 54193456. Its totient is φ = 52445160.

The previous prime is 53319281. The next prime is 53319319. The reversal of 53319307 is 70391335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53319307 - 2¹⁵ = 53286539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53319347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436983 + ... + 437104.

It is an arithmetic number, because the mean of its divisors is an integer number (13548364).

Almost surely, 2^53319307 is an apocalyptic number.

53319307 is a deficient number, since it is larger than the sum of its proper divisors (874149).

53319307 is an equidigital number, since it uses as much as digits as its factorization.

53319307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874148.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 53319307 is about 7302.0070528588. The cubic root of 53319307 is about 376.3814104467.

The spelling of 53319307 in words is "fifty-three million, three hundred nineteen thousand, three hundred seven".