5206221652 has 6 divisors (see below), whose sum is σ = 9110887898. Its totient is φ = 2603110824.

The previous prime is 5206221589. The next prime is 5206221653. The reversal of 5206221652 is 2561226025.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4488196036 + 718025616 = 66994^2 + 26796^2 .

It is a super-3 number, since 3×5206221652³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5206221653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650777703 + ... + 650777710.

Almost surely, 2^5206221652 is an apocalyptic number.

It is an amenable number.

5206221652 is a deficient number, since it is larger than the sum of its proper divisors (3904666246).

5206221652 is a wasteful number, since it uses less digits than its factorization.

5206221652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301555417 (or 1301555415 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 5206221652 is about 72154.1520080446. The cubic root of 5206221652 is about 1733.1688889194.

Adding to 5206221652 its reverse (2561226025), we get a palindrome (7767447677).

The spelling of 5206221652 in words is "five billion, two hundred six million, two hundred twenty-one thousand, six hundred fifty-two".