52705430 has 32 divisors (see below), whose sum is σ = 101295360. Its totient is φ = 19686240.

The previous prime is 52705421. The next prime is 52705447. The reversal of 52705430 is 3450725.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52705430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11537 + ... + 15443.

It is an arithmetic number, because the mean of its divisors is an integer number (3165480).

Almost surely, 2^52705430 is an apocalyptic number.

52705430 is a deficient number, since it is larger than the sum of its proper divisors (48589930).

52705430 is a wasteful number, since it uses less digits than its factorization.

52705430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 52705430 is about 7259.8505494259. The cubic root of 52705430 is about 374.9313770728.

It can be divided in two parts, 52705 and 430, that added together give a palindrome (53135).

The spelling of 52705430 in words is "fifty-two million, seven hundred five thousand, four hundred thirty".