5202121563 has 20 divisors (see below), whose sum is σ = 8021754048. Its totient is φ = 3356205840.

The previous prime is 5202121537. The next prime is 5202121571. The reversal of 5202121563 is 3651212025.

It is a happy number.

It is not a de Polignac number, because 5202121563 - 2¹² = 5202117467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5202121583) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1033356 + ... + 1038377.

Almost surely, 2^5202121563 is an apocalyptic number.

5202121563 is a deficient number, since it is larger than the sum of its proper divisors (2819632485).

5202121563 is a wasteful number, since it uses less digits than its factorization.

5202121563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071776 (or 2071767 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 5202121563 is about 72125.7344018070. The cubic root of 5202121563 is about 1732.7137915738.

Adding to 5202121563 its reverse (3651212025), we get a palindrome (8853333588).

The spelling of 5202121563 in words is "five billion, two hundred two million, one hundred twenty-one thousand, five hundred sixty-three".