52206541 has 4 divisors (see below), whose sum is σ = 55277532. Its totient is φ = 49135552.

The previous prime is 52206493. The next prime is 52206551. The reversal of 52206541 is 14560225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20520900 + 31685641 = 4530^2 + 5629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52206541 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 (52206551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1535470 + ... + 1535503.

It is an arithmetic number, because the mean of its divisors is an integer number (13819383).

Almost surely, 2^52206541 is an apocalyptic number.

It is an amenable number.

52206541 is a deficient number, since it is larger than the sum of its proper divisors (3070991).

52206541 is a wasteful number, since it uses less digits than its factorization.

52206541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070990.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 52206541 is about 7225.4094001655. The cubic root of 52206541 is about 373.7446401397.

Adding to 52206541 its reverse (14560225), we get a palindrome (66766766).

The spelling of 52206541 in words is "fifty-two million, two hundred six thousand, five hundred forty-one".