52521037 has 4 divisors (see below), whose sum is σ = 54215296. Its totient is φ = 50826780.

The previous prime is 52520981. The next prime is 52521047. The reversal of 52521037 is 73012525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52521037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52521047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 847083 + ... + 847144.

It is an arithmetic number, because the mean of its divisors is an integer number (13553824).

Almost surely, 2^52521037 is an apocalyptic number.

It is an amenable number.

52521037 is a deficient number, since it is larger than the sum of its proper divisors (1694259).

52521037 is a wasteful number, since it uses less digits than its factorization.

52521037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694258.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 52521037 is about 7247.1399186162. The cubic root of 52521037 is about 374.4936264626.

The spelling of 52521037 in words is "fifty-two million, five hundred twenty-one thousand, thirty-seven".