52543430 has 16 divisors (see below), whose sum is σ = 100141920. Its totient is φ = 19780992.

The previous prime is 52543409. The next prime is 52543451. The reversal of 52543430 is 3434525.

It is an interprime number because it is at equal distance from previous prime (52543409) and next prime (52543451).

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

It is a self number, because there is not a number n which added to its sum of digits gives 52543430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154370 + ... + 154709.

It is an arithmetic number, because the mean of its divisors is an integer number (6258870).

Almost surely, 2^52543430 is an apocalyptic number.

52543430 is a deficient number, since it is larger than the sum of its proper divisors (47598490).

52543430 is a wasteful number, since it uses less digits than its factorization.

52543430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309103.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 52543430 is about 7248.6847082764. The cubic root of 52543430 is about 374.5468422450.

Adding to 52543430 its reverse (3434525), we get a palindrome (55977955).

The spelling of 52543430 in words is "fifty-two million, five hundred forty-three thousand, four hundred thirty".