52319591 has 16 divisors (see below), whose sum is σ = 57302784. Its totient is φ = 47568384.

The previous prime is 52319573. The next prime is 52319593. The reversal of 52319591 is 19591325.

It is a de Polignac number, because none of the positive numbers 2^k-52319591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52319593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140081 + ... + 140453.

It is an arithmetic number, because the mean of its divisors is an integer number (3581424).

Almost surely, 2^52319591 is an apocalyptic number.

52319591 is a deficient number, since it is larger than the sum of its proper divisors (4983193).

52319591 is a wasteful number, since it uses less digits than its factorization.

52319591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650.

The product of its digits is 12150, while the sum is 35.

The square root of 52319591 is about 7233.2282557652. The cubic root of 52319591 is about 374.0142191969.

The spelling of 52319591 in words is "fifty-two million, three hundred nineteen thousand, five hundred ninety-one".