52180521 has 8 divisors (see below), whose sum is σ = 70249920. Its totient is φ = 34449072.

The previous prime is 52180507. The next prime is 52180553. The reversal of 52180521 is 12508125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52180521 - 2⁷ = 52180393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52180491 and 52180500.

It is not an unprimeable number, because it can be changed into a prime (52180501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84126 + ... + 84743.

It is an arithmetic number, because the mean of its divisors is an integer number (8781240).

Almost surely, 2^52180521 is an apocalyptic number.

It is an amenable number.

52180521 is a deficient number, since it is larger than the sum of its proper divisors (18069399).

52180521 is a wasteful number, since it uses less digits than its factorization.

52180521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168975.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 52180521 is about 7223.6085857416. The cubic root of 52180521 is about 373.6825377579.

Adding to 52180521 its reverse (12508125), we get a palindrome (64688646).

The spelling of 52180521 in words is "fifty-two million, one hundred eighty thousand, five hundred twenty-one".