52519581 has 6 divisors (see below), whose sum is σ = 75861630. Its totient is φ = 35013048.

The previous prime is 52519567. The next prime is 52519601. The reversal of 52519581 is 18591525.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50893956 + 1625625 = 7134^2 + 1275^2 .

It is not a de Polignac number, because 52519581 - 2⁶ = 52519517 is a prime.

It is a super-2 number, since 2×52519581² = 5516612776831122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52519501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2917746 + ... + 2917763.

It is an arithmetic number, because the mean of its divisors is an integer number (12643605).

Almost surely, 2^52519581 is an apocalyptic number.

It is an amenable number.

52519581 is a deficient number, since it is larger than the sum of its proper divisors (23342049).

52519581 is a wasteful number, since it uses less digits than its factorization.

52519581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5835515 (or 5835512 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 52519581 is about 7247.0394644986. The cubic root of 52519581 is about 374.4901658318.

The spelling of 52519581 in words is "fifty-two million, five hundred nineteen thousand, five hundred eighty-one".