52431530 has 16 divisors (see below), whose sum is σ = 95977440. Its totient is φ = 20616912.

The previous prime is 52431527. The next prime is 52431539. The reversal of 52431530 is 3513425.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52431496 and 52431505.

It is not an unprimeable number, because it can be changed into a prime (52431539) 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, 43844 + ... + 45023.

It is an arithmetic number, because the mean of its divisors is an integer number (5998590).

Almost surely, 2^52431530 is an apocalyptic number.

52431530 is a deficient number, since it is larger than the sum of its proper divisors (43545910).

52431530 is a wasteful number, since it uses less digits than its factorization.

52431530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88933.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 52431530 is about 7240.9619526690. The cubic root of 52431530 is about 374.2807666093.

Adding to 52431530 its reverse (3513425), we get a palindrome (55944955).

The spelling of 52431530 in words is "fifty-two million, four hundred thirty-one thousand, five hundred thirty".