52815430 has 32 divisors (see below), whose sum is σ = 102184416. Its totient is φ = 19582464.

The previous prime is 52815419. The next prime is 52815431. The reversal of 52815430 is 3451825.

52815430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52815431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9072 + ... + 13708.

It is an arithmetic number, because the mean of its divisors is an integer number (3193263).

Almost surely, 2^52815430 is an apocalyptic number.

52815430 is a deficient number, since it is larger than the sum of its proper divisors (49368986).

52815430 is a wasteful number, since it uses less digits than its factorization.

52815430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 52815430 is about 7267.4225142068. The cubic root of 52815430 is about 375.1920320168.

The spelling of 52815430 in words is "fifty-two million, eight hundred fifteen thousand, four hundred thirty".