52521434 has 48 divisors (see below), whose sum is σ = 98140320. Its totient is φ = 20956320.

The previous prime is 52521433. The next prime is 52521439. The reversal of 52521434 is 43412525.

It is a happy number.

52521434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52521431) 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 23 ways as a sum of consecutive naturals, for example, 124544 + ... + 124964.

It is an arithmetic number, because the mean of its divisors is an integer number (2044590).

Almost surely, 2^52521434 is an apocalyptic number.

52521434 is a deficient number, since it is larger than the sum of its proper divisors (45618886).

52521434 is a wasteful number, since it uses less digits than its factorization.

52521434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 516 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 52521434 is about 7247.1673086800. The cubic root of 52521434 is about 374.4945700438.

Adding to 52521434 its reverse (43412525), we get a palindrome (95933959).

The spelling of 52521434 in words is "fifty-two million, five hundred twenty-one thousand, four hundred thirty-four".