52215541 has 8 divisors (see below), whose sum is σ = 60255104. Its totient is φ = 44321040.

The previous prime is 52215529. The next prime is 52215607. The reversal of 52215541 is 14551225.

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

It is a cyclic number.

It is not a de Polignac number, because 52215541 - 2¹³ = 52207349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35490 + ... + 36931.

It is an arithmetic number, because the mean of its divisors is an integer number (7531888).

Almost surely, 2^52215541 is an apocalyptic number.

It is an amenable number.

52215541 is a deficient number, since it is larger than the sum of its proper divisors (8039563).

52215541 is a wasteful number, since it uses less digits than its factorization.

52215541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72531.

The product of its digits is 2000, while the sum is 25.

The square root of 52215541 is about 7226.0321754058. The cubic root of 52215541 is about 373.7661157915.

Adding to 52215541 its reverse (14551225), we get a palindrome (66766766).

The spelling of 52215541 in words is "fifty-two million, two hundred fifteen thousand, five hundred forty-one".