52521524 has 24 divisors (see below), whose sum is σ = 100920288. Its totient is φ = 23718240.

The previous prime is 52521509. The next prime is 52521559. The reversal of 52521524 is 42512525.

It is a junction number, because it is equal to n+sod(n) for n = 52521493 and 52521502.

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 7 ways as a sum of consecutive naturals, for example, 3107 + ... + 10709.

It is an arithmetic number, because the mean of its divisors is an integer number (4205012).

Almost surely, 2^52521524 is an apocalyptic number.

It is an amenable number.

52521524 is a deficient number, since it is larger than the sum of its proper divisors (48398764).

52521524 is a wasteful number, since it uses less digits than its factorization.

52521524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775 (or 7773 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 52521524 is about 7247.1735180000. The cubic root of 52521524 is about 374.4947839533.

It can be divided in two parts, 5252 and 1524, that added together give a palindrome (6776).

The spelling of 52521524 in words is "fifty-two million, five hundred twenty-one thousand, five hundred twenty-four".